Nissan Sentra B18 (2020-2025) Service Manual: Diagnosis System (ipdm E/r)

Nissan Sentra B18 (2020-2025) Service Manual / Electrical & Power Control / Power Control System :: Ipdm E/r / System Description / Diagnosis System (ipdm E/r)

Consult Function (ipdm E/r)

CONSULT Function (IPDM E/R)

APPLICATION ITEM

CONSULT performs the following functions via CAN communication with IPDM E/R:

Diagnosis mode	CGW Status			Description
Diagnosis mode	Restricted Mode	Diag Test Mode	Open Mode	Description
Self Diagnostic Result	Display	Display	Display	Displays non-network DTC which the IPDM E/R memorizes.
CGW Information	Display	Display	Display	Displays the current CGW mode. Enables CGW to switch mode.
Data Monitor	Display	Display	Display	Displays the real-time input/output data from the IPDM E/R input/output data.
Active Test	Non-display	Display	Display	The IPDM E/R can provide a drive signal to electronic components to check their operations.
ECU Identification	Display	Display	Display	Allows confirmation of the IPDM E/R part number.
Configuration	Display	Display	Display	Read and save Nissan Sentra vehicle specification.
Network-DTC^*	Display	Display	Display	Displays network DTC which the IPDM E/R memorizes when performing "Diagnosis (All System)".

^*: Displays when performing "Diagnosis (All System)".

ECU IDENTIFICATION

The IPDM E/R part number is displayed.

SELF DIAGNOSTIC RESULT

Refer to DTC Index.

CGW INFORMATION

Displays the diagnosis mode which a user can perform in Diag Test mode/Open Mode by switching the CGW status from Restricted mode to Diag Test Mode/Open Mode.

For the method of switching CAN Gateway status. Refer to CONSULT Function.

DATA MONITOR

Note:

The following table includes information (items) inapplicable to this Nissan Sentra vehicle. For information (items) applicable to this vehicle, refer to CONSULT display items.

Monitor item	Description
Hood switch [Open/Close]	Displays the status of hood switch judged by IPDM E/R. Note: This item is monitored only on the Nissan Sentra vehicle with remote engine start system.
IGN RELAY [Open/Close]	Displays the status of ignition relay-1 judged by IPDM E/R.
REVERSE SIGNAL [Open/Close]	Displays the status of the transmission range switch judged by IPDM E/R (with CVT) Displays the status of the park/neutral position (PNP) switch judged by the IPDM E/R (with M/T)
NEUTRAL SW [Open/Close]	Displays the status of the park/neutral (PNP) switch judged by the IPDM E/R. Note: This item is monitored only on the Nissan Sentra vehicle with M/T.
Headlamp warning (RH) [Open/Close]	Displays the status of headlamp warning RH signal judged by IPDM E/R. Note: This item is monitored only on the Nissan Sentra vehicle with LED headlamp.
Headlamp warning (LH) [Open/Close]	Displays the status of headlamp warning LH signal judged by IPDM E/R. Note: This item is monitored only on the Nissan Sentra vehicle with LED headlamp.
Cooling fan relay-2 [OFF/ON]	Displays the cooling fan relay-2 drive status judged by IPDM E/R.
Horn relay [OFF/ON]	Note: This item is indicated, but not monitored.
Compressor [OFF/ON]	Displays the A/C compressor (magnetic clutch) output status judged by IPDM E/R.
Front wiper HI/LO relay [OFF/ON]	Displays the front wiper high relay drive status judged by IPDM E/R.
Front wiper relay [OFF/ON]	Displays the front wiper relay drive status judged by IPDM E/R.
Ignition relay off status [OFF/ON]	Displays the ignition relay-1 OFF status judged by IPDM E/R.
Ignition relay on status [OFF/ON]	Displays the ignition relay-1 ON status judged by IPDM E/R.
Starter relay [OFF/ON]	Note: This item is indicated, but not monitored.
Compressor ECV duty [%]	Displays the A/C compressor (ECV) output (PWM) status of the IPDM E/R.
Cooling fan relay-3 [%]	Displays the cooling fan relay-3 output (PWM) status of IPDM E/R.
Front fog lamp (LH) [%]	Displays the front fog lamp LH output (PWM) status of IPDM E/R. Note: This item is monitored only on the Nissan Sentra vehicle with front fog lamp.
Front fog lamp (RH) [%]	Displays the front fog lamp RH output (PWM) status of IPDM E/R. Note: This item is monitored only on the Nissan Sentra vehicle with front fog lamp.
Tail lamp (LH) [%]	Displays the tail lamp LH output (PWM) status of IPDM E/R.
Tail lamp (RH) [%]	Displays the tail lamp RH output (PWM) status of IPDM E/R.
Daytime running light (LH) [%]	Displays the daytime running light LH output (PWM) status of IPDM E/R. Note: This item is monitored only on the Nissan Sentra vehicle with daytime running light system.
Daytime running light (RH) [%]	Displays the daytime running light RH output (PWM) status of IPDM E/R. Note: This item is monitored only on the Nissan Sentra vehicle with daytime running light system.
Headlamp HI (LH) [%]	Displays the headlamp (high) LH output (PWM) status of IPDM E/R.
Headlamp HI (RH) [%]	Displays the headlamp (high) RH output (PWM) status of IPDM E/R.
Headlamp LO (RH) [%]	Displays the headlamp (low) RH output (PWM) status of IPDM E/R.
Headlamp LO (LH) [%]	Displays the headlamp (low) LH output (PWM) status of IPDM E/R.
Parking lamp (RH) [%]	Displays the parking lamp RH output (PWM) status of IPDM E/R.
Parking lamp (LH) [%]	Displays the parking lamp LH output (PWM) status of IPDM E/R.
COMP ECV STATUS [NG/OK]	Displays the status of A/C compressor (ECV) malfunction diagnosis that the IPDM E/R transmits via CAN communication.
Battery current sensor value [A]	Note: This item is indicated, but not monitored.
BATTERY VOLTAGE [V]	Displays the status of battery voltage value that IPDM E/R transmits via CAN communication.
Battery warning request (IPDM) [No Alert/Alert/Unknown]	Displays the status of battery warning request signal (IPDM E/R) that IPDM E/R transmits via CAN communication.
FR WIPER STOP POSITION [ACTIVE P/STOP P]	Displays the status of front wiper stop position signal that IPDM E/R transmits via CAN communication.
IGNITION POWER SUPPLY [Off/On]	Note: This item is indicated, but not monitored.
STARTER RELAY (CAN) [NG/LOW/HIGH]	Note: This item is indicated, but not monitored.
HOOD SW (CAN) [NG/OPEN/CLOSE]	Displays the status of hood switch signal that IPDM E/R transmits via CAN communication. Note: This item is monitored only on the Nissan Sentra vehicle with idle start/stop system.
Front wiper [Stop/Low/High]	Displays the status of front wiper status signal that IPDM E/R transmits via CAN communication.
COOLING FAN DUTY [%]	Displays the status of cooling fan speed that IPDM E/R transmits via CAN communication.
A/C RELAY STUCK [NG/OK]	Displays the status of A/C compressor (magnetic clutch) malfunction diagnosis that IPDM E/R transmits via CAN communication.
Headlamp warning request [No req/Request/Re-req]	Displays the status of headlamp warning signal that IPDM E/R transmits via CAN communication. Note: This item is monitored only on the Nissan Sentra vehicle with LED headlamp.
NEUTRAL SWITCH (CAN) [Off/On/NG]	Displays the status of the park/neutral position (PNP) switch signal that the IPDM E/R transmits via CAN communication. Note: This item is monitored only on the Nissan Sentra vehicle with M/T.
A/C RELAY [Off/On]	Displays the status of A/C compressor (magnetic clutch) output that IPDM E/R transmits via CAN communication.
Alternator voltage req value [V]	Note: This item is indicated, but not monitored.
REVERSE SIGNAL (CAN) [Off/On/NG]	Displays the status of reverse position signal that IPDM E/R transmits via CAN communication.
COMP ECV CURRENT [A]	Displays the status of electric current output to the A/C compressor (ECV) that the IPDM E/R transmits via CAN communication.
STARTER MOTOR STATUS [short relaxation active/L-TIME/On]	Note: This item is indicated, but not monitored.
IPDM NOT SLEEP [Unknown/No ready/Ready]	Note: This item is indicated, but not monitored.
Starter&starter cont relay stat [Off, Off/On, Off/invalid/On, On]	Displays the status of starter relay and starter control relay that IPDM E/R transmits via CAN communication.
Starter control relay status [Off/On/Unknown]	Displays the status of starter control relay that IPDM E/R transmits via CAN communication.
Battery temp sensor value [°C]	Note: This item is indicated, but not monitored.
Compressor request 1 [Off/On]	Displays the status of A/C compressor (magnetic clutch) request signal received from ECM via CAN communication.
Easy fill tire alert horn req [Off/On]	Note: This item is indicated, but not monitored.
Cranking enable-TCM [Unknown/Prohibit/Permit/Stop]	Displays the status of cranking enable signal received from TCM via CAN communication.
Cranking enable-ECM [Prohibit/Permit/Stop/No req]	Displays the status of cranking enable signal received from ECM via CAN communication.
DTRL REQ [Off/On]	Displays the status of daytime running light request signal received from BCM via CAN communication. Note: This item is monitored only on the Nissan Sentra vehicle with daytime running light system.
SLEEP/WAKE UP [SLEEP/WAKEUP]	Note: This item is indicated, but not monitored.
TURN SIGNAL REQ [Off/LH/RH]	Displays the status of turn indicator signal received from BCM via CAN communication.
COOLING FAN REQ [%]	Displays the status of cooling fan speed request signal received from BCM via CAN communication.
FR WIPER REQ [RETURN/STOP/NG/LOW/HIGH]	Displays the status of front wiper request signal received from BCM via CAN communication.
Diagnosis mask status [Status 1/Status 2/Status 3/Status 4/Unknown]	Displays the status of diagnosis mask status signal received from BCM via CAN communication.
PASSING REQ [Off/On]	Displays the status of passing request signal received from BCM via CAN communication.
HIGH BEAM REQ [Off/On]	Displays the status of high beam request signal received from BCM via CAN communication.
Horn request [No req/Off/Panic/Hrn chirp/Thft warn/Return/Unknown]	Note: This item is indicated, but not monitored.
Low beam request [Off/On]	Displays the status of low beam request signal received from BCM via CAN communication.
Engine status [Stop/Running/Starting]	Displays the status of engine status signal received from ECM via CAN communication.
POSITION LIGHT REQ [Off/On]	Displays the status of position light request signal received from BCM via CAN communication.
IGNITION SW [Off/No request/On/START]	Displays the status of ignition switch ON signal received from BCM via CAN communication.
Hazard warning lamp status [Off/On]	Displays the status of hazard warning lamp status signal received from BCM via CAN communication.
FRONT FOG LAMP REQ [Off/On]	Displays the status of front fog light request signal received from BCM via CAN communication. Note: This item is monitored only on the Nissan Sentra vehicle with front fog lamp.
Motor fan type [PWM fan/Mono fan/Dual fan/Relay fan/3relay f]	Displays the cooling fan type.
Low Beam type [Halogen/LED]	Displays the headlamp (low beam) type.
STARTER OPERATION COUNT [Times]	Note: This item is indicated, but not monitored.
H/P F/PUMP OPERATN COUNT [Times]	Note: This item is indicated, but not monitored.
Park lamp (LH) circ malfunctn [―]	Monitor the number of times that the Smart FET in IPDM E/R reaches the retry upper limit of the parking lamp LH circuit. Note: When the number of parking lamp LH circuit retries count is 20, this item counts 1.
Nmb park lamp (LH) circ retry [―]	Monitor the number of times that the Smart FET in IPDM E/R permits the retry of the parking lamp LH circuit. Note: When the number of short circuits in the parking lamp LH circuit count is 5 and the ignition switch OFF to ON operation is detected, this item counts 1.
Nmb park lamp (LH) circ short [―]	Monitor the number of times that the Smart FET in IPDM E/R detects the over current of the parking lamp LH circuit.
DTRL (LH) circ malfunctn [―]	Monitor the number of times that the Smart FET in IPDM E/R reaches the retry upper limit of the daytime running light LH circuit. Note: When the number of daytime running light LH circuit retries count is 20, this item counts 1. This item is monitored only on the Nissan Sentra vehicle with daytime running light system.
Nmb DTRL (LH) circ retry [―]	Monitor the number of times that the Smart FET in IPDM E/R permits the retry of the daytime running light LH circuit. Note: When the number of short circuits in the daytime running light LH circuit count is 5 and the ignition switch OFF to ON operation is detected, this item counts 1. This item is monitored only on the Nissan Sentra vehicle with daytime running light system.
Nmb DTRL (LH) circ short [―]	Monitor the number of times that the Smart FET in IPDM E/R detects the over current of the daytime running light LH circuit. Note: This item is monitored only on the Nissan Sentra vehicle with daytime running light system.
DTRL (RH) circ malfunctn [―]	Monitor the number of times that the Smart FET in IPDM E/R reaches the retry upper limit of the daytime running light RH circuit. Note: When the number of daytime running light RH circuit retries count is 20, this item counts 1. This item is monitored only on the Nissan Sentra vehicle with daytime running light system.
Nmb DTRL (RH) circ retry [―]	Monitor the number of times that the Smart FET in IPDM E/R permits the retry of the daytime running light RH circuit. Note: When the number of short circuits in the daytime running light RH circuit count is 5 and the ignition switch OFF to ON operation is detected, this item counts 1. This item is monitored only on the Nissan Sentra vehicle with daytime running light system.
Nmb DTRL (RH) circ short [―]	Monitor the number of times that the Smart FET in IPDM E/R detects the over current of the daytime running light RH circuit. Note: This item is monitored only on the Nissan Sentra vehicle with daytime running light system.
Fr fog lamp (LH) circ malfunctn [―]	Monitor the number of times that the Smart FET in IPDM E/R reaches the retry upper limit of the front fog lamp LH circuit. Note: When the number of front fog lamp LH circuit retries count is 20, this item counts 1. This item is monitored only on the Nissan Sentra vehicle with front fog lamp.
NMB F FOG LH CIRC RETRY [―]	Monitor the number of times that the Smart FET in IPDM E/R permits the retry of the front fog lamp LH circuit. Note: When the number of short circuits in the front fog lamp LH circuit count is 5 and the ignition switch OFF to ON operation is detected, this item counts 1. This item is monitored only on the Nissan Sentra vehicle with front fog lamp.
NMB F FOG LH CIRC SHORT [―]	Monitor the number of times that the Smart FET in IPDM E/R detects the over current of the front fog lamp LH circuit. Note: This item is monitored only on the Nissan Sentra vehicle with front fog lamp.
F FOG RH CIRC MALFUNCTN [―]	Monitor the number of times that the Smart FET in IPDM E/R reaches the retry upper limit of the front fog lamp RH circuit. Note: When the number of front fog lamp RH circuit retries count is 20, this item counts 1. This item is monitored only on the Nissan Sentra vehicle with front fog lamp.
NMB F FOG RH CIRC RETRY [―]	Monitor the number of times that the Smart FET in IPDM E/R permits the retry of the front fog lamp RH circuit. Note: When the number of short circuits in the front fog lamp RH circuit count is 5 and the ignition switch OFF to ON operation is detected, this item counts 1. This item is monitored only on the Nissan Sentra vehicle with front fog lamp.
NMB F FOG RH CIRC SHORT [―]	Monitor the number of times that the Smart FET in IPDM E/R detects the over current of the front fog lamp RH circuit. Note: This item is monitored only on the Nissan Sentra vehicle with front fog lamp.
HL (HI) LH CIRC MALFUNCTN [―]	Monitor the number of times that the Smart FET in IPDM E/R reaches the retry upper limit of the headlamp (high) LH circuit. Note: When the number of headlamp (high) LH circuit retries count is 20, this item counts 1.
NMB HL (HI) LH CIRC RETRY [―]	Monitor the number of times that the Smart FET in IPDM E/R permits the retry of the headlamp (high) LH circuit. Note: When the number of short circuits in the headlamp (high) LH circuit count is 5 and the ignition switch OFF to ON operation is detected, this item counts 1.
NMB HL (HI) LH CIRC SHORT [―]	Monitor the number of times that the Smart FET in IPDM E/R detects the over current of the headlamp (high) LH circuit.
HL (HI) RH CIRC MALFUNCTN [―]	Monitor the number of times that the Smart FET in IPDM E/R reaches the retry upper limit of the headlamp (high) RH circuit. Note: When the number of headlamp (high) RH circuit retries count is 20, this item counts 1.
Nmb HL HI (RH) circ retry [―]	Monitor the number of times that the Smart FET in IPDM E/R permits the retry of the headlamp (high) RH circuit. Note: When the number of short circuits in the headlamp (high) RH circuit count is 5 and the ignition switch OFF to ON operation is detected, this item counts 1.
Nmb HL HI (RH) circ short [―]	Monitor the number of times that the Smart FET in IPDM E/R detects the over current of the headlamp (high) RH circuit.
HL LO (LH) circ malfunctn [―]	Monitor the number of times that the Smart FET in IPDM E/R reaches the retry upper limit of the headlamp (low) LH circuit. Note: When the number of headlamp (low) LH circuit retries count is 20, this item counts 1.
Nmb HL LO (LH) circ retry [―]	Monitor the number of times that the Smart FET in IPDM E/R permits the retry of the headlamp (low) LH circuit. Note: When the number of short circuits in the headlamp (low) LH circuit count is 5 and the ignition switch OFF to ON operation is detected, this item counts 1.
Nmb HL LO (LH) circ short [―]	Monitor the number of times that the Smart FET in IPDM E/R detects the over current of the headlamp (low) LH circuit.
HL LO (RH) circ malfunctn [―]	Monitor the number of times that the Smart FET in IPDM E/R reaches the retry upper limit of the headlamp (low) RH circuit. Note: When the number of headlamp (low) RH circuit retries count is 20, this item counts 1.
Nmb HL LO (RH) circ retry [―]	Monitor the number of times that the Smart FET in IPDM E/R permits the retry of the headlamp (low) RH circuit. Note: When the number of short circuits in the headlamp (low) RH circuit count is 5 and the ignition switch OFF to ON operation is detected, this item counts 1.
Nmb HL LO (RH) circ short [―]	Monitor the number of times that the Smart FET in IPDM E/R detects the over current of the headlamp (low) RH circuit.
T LAMP LH CIRC MALFUNCTN [―]	Monitor the number of times that the Smart FET in IPDM E/R reaches the retry upper limit of the tail lamp LH circuit. Note: When the number of tail lamp LH circuit retries count is 20, this item counts 1.
NMB T LAMP LH CIRC RETRY [―]	Monitor the number of times that the Smart FET in IPDM E/R permits the retry of the tail lamp LH circuit. Note: When the number of short circuits in the tail lamp LH circuit count is 5 and the ignition switch OFF to ON operation is detected, this item counts 1.
NMB T LAMP LH CIRC SHORT [―]	Monitor the number of times that the Smart FET in IPDM E/R detects the over current of the tail lamp LH circuit.
T LAMP RH CIRC MALFUNCTN [―]	Monitor the number of times that the Smart FET in IPDM E/R reaches the retry upper limit of the tail lamp RH circuit. Note: When the number of tail lamp RH circuit retries count is 20, this item counts 1.
NMB T LAMP RH CIRC RETRY [―]	Monitor the number of times that the Smart FET in IPDM E/R permits the retry of the tail lamp RH circuit. Note: When the number of short circuits in the tail lamp RH circuit count is 5 and the ignition switch OFF to ON operation is detected, this item counts 1.
NMB T LAMP RH CIRC SHORT [―]	Monitor the number of times that the Smart FET in IPDM E/R detects the over current of the tail lamp RH circuit.
Park lamp (RH) circ malfunctn [―]	Monitor the number of times that the Smart FET in IPDM E/R reaches the retry upper limit of the parking lamp RH circuit. Note: When the number of parking lamp RH circuit retries count is 20, this item counts 1.
Nmb park lamp (RH) circ retry [―]	Monitor the number of times that the Smart FET in IPDM E/R permits the retry of the parking lamp RH circuit. Note: When the number of short circuits in the parking lamp RH circuit count is 5 and the ignition switch OFF to ON operation is detected, this item counts 1.
Nmb park lamp (RH) circ short [―]	Monitor the number of times that the Smart FET in IPDM E/R detects the over current of the parking lamp RH circuit.
BAT DISCHARGE COUNT [―]	Monitor the cumulative discharge value of the battery. Note: When 65000 or more is counted, replace the battery. This item is monitored only on the Nissan Sentra vehicle with idle start/stop system.
BATTERY STATUS [OK/NG]	Monitor the battery status from the battery output. Note: This item is monitored only on the Nissan Sentra vehicle with idle start/stop system.
Nissan Sentra Vehicle speed [km/h]	Displays the status of Nissan Sentra vehicle speed signal received from ABS actuator and electric unit (control unit) via CAN communication.

Monitor item

Description

Hood switch

[Open/Close]

Displays the status of hood switch judged by IPDM E/R.

Note:

This item is monitored only on the Nissan Sentra vehicle with remote engine start system.

IGN RELAY

[Open/Close]

Displays the status of ignition relay-1 judged by IPDM E/R.

REVERSE SIGNAL

[Open/Close]

Displays the status of the transmission range switch judged by IPDM E/R (with CVT)
Displays the status of the park/neutral position (PNP) switch judged by the IPDM E/R (with M/T)

NEUTRAL SW

[Open/Close]

Displays the status of the park/neutral (PNP) switch judged by the IPDM E/R.

Note:

This item is monitored only on the Nissan Sentra vehicle with M/T.

Headlamp warning (RH)

[Open/Close]

Displays the status of headlamp warning RH signal judged by IPDM E/R.

Note:

This item is monitored only on the Nissan Sentra vehicle with LED headlamp.

Headlamp warning (LH)

[Open/Close]

Displays the status of headlamp warning LH signal judged by IPDM E/R.

Note:

This item is monitored only on the Nissan Sentra vehicle with LED headlamp.

Cooling fan relay-2

[OFF/ON]

Displays the cooling fan relay-2 drive status judged by IPDM E/R.

Horn relay

[OFF/ON]

Note:

This item is indicated, but not monitored.

Compressor

[OFF/ON]

Displays the A/C compressor (magnetic clutch) output status judged by IPDM E/R.

Front wiper HI/LO relay

[OFF/ON]

Displays the front wiper high relay drive status judged by IPDM E/R.

Front wiper relay

[OFF/ON]

Displays the front wiper relay drive status judged by IPDM E/R.

Ignition relay off status

[OFF/ON]

Displays the ignition relay-1 OFF status judged by IPDM E/R.

Ignition relay on status

[OFF/ON]

Displays the ignition relay-1 ON status judged by IPDM E/R.

Starter relay

[OFF/ON]

Note:

This item is indicated, but not monitored.

Compressor ECV duty

[%]

Displays the A/C compressor (ECV) output (PWM) status of the IPDM E/R.

Cooling fan relay-3

[%]

Displays the cooling fan relay-3 output (PWM) status of IPDM E/R.

Front fog lamp (LH)

[%]

Displays the front fog lamp LH output (PWM) status of IPDM E/R.

Note:

This item is monitored only on the Nissan Sentra vehicle with front fog lamp.

Front fog lamp (RH)

[%]

Displays the front fog lamp RH output (PWM) status of IPDM E/R.

Note:

This item is monitored only on the Nissan Sentra vehicle with front fog lamp.

Tail lamp (LH)

[%]

Displays the tail lamp LH output (PWM) status of IPDM E/R.

Tail lamp (RH)

[%]

Displays the tail lamp RH output (PWM) status of IPDM E/R.

Daytime running light (LH)

[%]

Displays the daytime running light LH output (PWM) status of IPDM E/R.

Note:

This item is monitored only on the Nissan Sentra vehicle with daytime running light system.

Daytime running light (RH)

[%]

Displays the daytime running light RH output (PWM) status of IPDM E/R.

Note:

This item is monitored only on the Nissan Sentra vehicle with daytime running light system.

Headlamp HI (LH)

[%]

Displays the headlamp (high) LH output (PWM) status of IPDM E/R.

Headlamp HI (RH)

[%]

Displays the headlamp (high) RH output (PWM) status of IPDM E/R.

Headlamp LO (RH)

[%]

Displays the headlamp (low) RH output (PWM) status of IPDM E/R.

Headlamp LO (LH)

[%]

Displays the headlamp (low) LH output (PWM) status of IPDM E/R.

Parking lamp (RH)

[%]

Displays the parking lamp RH output (PWM) status of IPDM E/R.

Parking lamp (LH)

[%]

Displays the parking lamp LH output (PWM) status of IPDM E/R.

COMP ECV STATUS

[NG/OK]

Displays the status of A/C compressor (ECV) malfunction diagnosis that the IPDM E/R transmits via CAN communication.

Battery current sensor value

[A]

Note:

This item is indicated, but not monitored.

BATTERY VOLTAGE

[V]

Displays the status of battery voltage value that IPDM E/R transmits via CAN communication.

Battery warning request (IPDM)

[No Alert/Alert/Unknown]

Displays the status of battery warning request signal (IPDM E/R) that IPDM E/R transmits via CAN communication.

FR WIPER STOP POSITION

[ACTIVE P/STOP P]

Displays the status of front wiper stop position signal that IPDM E/R transmits via CAN communication.

IGNITION POWER SUPPLY

[Off/On]

Note:

This item is indicated, but not monitored.

STARTER RELAY (CAN)

[NG/LOW/HIGH]

Note:

This item is indicated, but not monitored.

HOOD SW (CAN)

[NG/OPEN/CLOSE]

Displays the status of hood switch signal that IPDM E/R transmits via CAN communication.

Note:

This item is monitored only on the Nissan Sentra vehicle with idle start/stop system.

Front wiper

[Stop/Low/High]

Displays the status of front wiper status signal that IPDM E/R transmits via CAN communication.

COOLING FAN DUTY

[%]

Displays the status of cooling fan speed that IPDM E/R transmits via CAN communication.

A/C RELAY STUCK

[NG/OK]

Displays the status of A/C compressor (magnetic clutch) malfunction diagnosis that IPDM E/R transmits via CAN communication.

Headlamp warning request

[No req/Request/Re-req]

Displays the status of headlamp warning signal that IPDM E/R transmits via CAN communication.

Note:

This item is monitored only on the Nissan Sentra vehicle with LED headlamp.

NEUTRAL SWITCH (CAN)

[Off/On/NG]

Displays the status of the park/neutral position (PNP) switch signal that the IPDM E/R transmits via CAN communication.

Note:

This item is monitored only on the Nissan Sentra vehicle with M/T.

A/C RELAY

[Off/On]

Displays the status of A/C compressor (magnetic clutch) output that IPDM E/R transmits via CAN communication.

Alternator voltage req value

[V]

Note:

This item is indicated, but not monitored.

REVERSE SIGNAL (CAN)

[Off/On/NG]

Displays the status of reverse position signal that IPDM E/R transmits via CAN communication.

COMP ECV CURRENT

[A]

Displays the status of electric current output to the A/C compressor (ECV) that the IPDM E/R transmits via CAN communication.

STARTER MOTOR STATUS

[short relaxation active/L-TIME/On]

Note:

This item is indicated, but not monitored.

IPDM NOT SLEEP

[Unknown/No ready/Ready]

Note:

This item is indicated, but not monitored.

Starter&starter cont relay stat

[Off, Off/On, Off/invalid/On, On]

Displays the status of starter relay and starter control relay that IPDM E/R transmits via CAN communication.

Starter control relay status

[Off/On/Unknown]

Displays the status of starter control relay that IPDM E/R transmits via CAN communication.

Battery temp sensor value

[°C]

Note:

This item is indicated, but not monitored.

Compressor request 1

[Off/On]

Displays the status of A/C compressor (magnetic clutch) request signal received from ECM via CAN communication.

Easy fill tire alert horn req

[Off/On]

Note:

This item is indicated, but not monitored.

Cranking enable-TCM

[Unknown/Prohibit/Permit/Stop]

Displays the status of cranking enable signal received from TCM via CAN communication.

Cranking enable-ECM

[Prohibit/Permit/Stop/No req]

Displays the status of cranking enable signal received from ECM via CAN communication.

DTRL REQ

[Off/On]

Displays the status of daytime running light request signal received from BCM via CAN communication.

Note:

This item is monitored only on the Nissan Sentra vehicle with daytime running light system.

SLEEP/WAKE UP

[SLEEP/WAKEUP]

Note:

This item is indicated, but not monitored.

TURN SIGNAL REQ

[Off/LH/RH]

Displays the status of turn indicator signal received from BCM via CAN communication.

COOLING FAN REQ

[%]

Displays the status of cooling fan speed request signal received from BCM via CAN communication.

FR WIPER REQ

[RETURN/STOP/NG/LOW/HIGH]

Displays the status of front wiper request signal received from BCM via CAN communication.

Diagnosis mask status

[Status 1/Status 2/Status 3/Status 4/Unknown]

Displays the status of diagnosis mask status signal received from BCM via CAN communication.

PASSING REQ

[Off/On]

Displays the status of passing request signal received from BCM via CAN communication.

HIGH BEAM REQ

[Off/On]

Displays the status of high beam request signal received from BCM via CAN communication.

Horn request

[No req/Off/Panic/Hrn chirp/Thft warn/Return/Unknown]

Note:

This item is indicated, but not monitored.

Low beam request

[Off/On]

Displays the status of low beam request signal received from BCM via CAN communication.

Engine status

[Stop/Running/Starting]

Displays the status of engine status signal received from ECM via CAN communication.

POSITION LIGHT REQ

[Off/On]

Displays the status of position light request signal received from BCM via CAN communication.

IGNITION SW

[Off/No request/On/START]

Displays the status of ignition switch ON signal received from BCM via CAN communication.

Hazard warning lamp status

[Off/On]

Displays the status of hazard warning lamp status signal received from BCM via CAN communication.

FRONT FOG LAMP REQ

[Off/On]

Displays the status of front fog light request signal received from BCM via CAN communication.

Note:

This item is monitored only on the Nissan Sentra vehicle with front fog lamp.

Motor fan type

[PWM fan/Mono fan/Dual fan/Relay fan/3relay f]

Displays the cooling fan type.

Low Beam type

[Halogen/LED]

Displays the headlamp (low beam) type.

STARTER OPERATION COUNT

[Times]

Note:

This item is indicated, but not monitored.

H/P F/PUMP OPERATN COUNT

[Times]

Note:

This item is indicated, but not monitored.

Park lamp (LH) circ malfunctn

[―]

Monitor the number of times that the Smart FET in IPDM E/R reaches the retry upper limit of the parking lamp LH circuit.

Note:

When the number of parking lamp LH circuit retries count is 20, this item counts 1.

Nmb park lamp (LH) circ retry

[―]

Monitor the number of times that the Smart FET in IPDM E/R permits the retry of the parking lamp LH circuit.

Note:

When the number of short circuits in the parking lamp LH circuit count is 5 and the ignition switch OFF to ON operation is detected, this item counts 1.

Nmb park lamp (LH) circ short

[―]

Monitor the number of times that the Smart FET in IPDM E/R detects the over current of the parking lamp LH circuit.

DTRL (LH) circ malfunctn

[―]

Monitor the number of times that the Smart FET in IPDM E/R reaches the retry upper limit of the daytime running light LH circuit.

Note:

When the number of daytime running light LH circuit retries count is 20, this item counts 1.
This item is monitored only on the Nissan Sentra vehicle with daytime running light system.

Nmb DTRL (LH) circ retry

[―]

Monitor the number of times that the Smart FET in IPDM E/R permits the retry of the daytime running light LH circuit.

Note:

When the number of short circuits in the daytime running light LH circuit count is 5 and the ignition switch OFF to ON operation is detected, this item counts 1.
This item is monitored only on the Nissan Sentra vehicle with daytime running light system.

Nmb DTRL (LH) circ short

[―]

Monitor the number of times that the Smart FET in IPDM E/R detects the over current of the daytime running light LH circuit.

Note:

This item is monitored only on the Nissan Sentra vehicle with daytime running light system.

DTRL (RH) circ malfunctn

[―]

Monitor the number of times that the Smart FET in IPDM E/R reaches the retry upper limit of the daytime running light RH circuit.

Note:

When the number of daytime running light RH circuit retries count is 20, this item counts 1.
This item is monitored only on the Nissan Sentra vehicle with daytime running light system.

Nmb DTRL (RH) circ retry

[―]

Monitor the number of times that the Smart FET in IPDM E/R permits the retry of the daytime running light RH circuit.

Note:

When the number of short circuits in the daytime running light RH circuit count is 5 and the ignition switch OFF to ON operation is detected, this item counts 1.
This item is monitored only on the Nissan Sentra vehicle with daytime running light system.

Nmb DTRL (RH) circ short

[―]

Monitor the number of times that the Smart FET in IPDM E/R detects the over current of the daytime running light RH circuit.

Note:

This item is monitored only on the Nissan Sentra vehicle with daytime running light system.

Fr fog lamp (LH) circ malfunctn

[―]

Monitor the number of times that the Smart FET in IPDM E/R reaches the retry upper limit of the front fog lamp LH circuit.

Note:

When the number of front fog lamp LH circuit retries count is 20, this item counts 1.
This item is monitored only on the Nissan Sentra vehicle with front fog lamp.

NMB F FOG LH CIRC RETRY

[―]

Monitor the number of times that the Smart FET in IPDM E/R permits the retry of the front fog lamp LH circuit.

Note:

When the number of short circuits in the front fog lamp LH circuit count is 5 and the ignition switch OFF to ON operation is detected, this item counts 1.
This item is monitored only on the Nissan Sentra vehicle with front fog lamp.

NMB F FOG LH CIRC SHORT

[―]

Monitor the number of times that the Smart FET in IPDM E/R detects the over current of the front fog lamp LH circuit.

Note:

This item is monitored only on the Nissan Sentra vehicle with front fog lamp.

F FOG RH CIRC MALFUNCTN

[―]

Monitor the number of times that the Smart FET in IPDM E/R reaches the retry upper limit of the front fog lamp RH circuit.

Note:

When the number of front fog lamp RH circuit retries count is 20, this item counts 1.
This item is monitored only on the Nissan Sentra vehicle with front fog lamp.

NMB F FOG RH CIRC RETRY

[―]

Monitor the number of times that the Smart FET in IPDM E/R permits the retry of the front fog lamp RH circuit.

Note:

When the number of short circuits in the front fog lamp RH circuit count is 5 and the ignition switch OFF to ON operation is detected, this item counts 1.
This item is monitored only on the Nissan Sentra vehicle with front fog lamp.

NMB F FOG RH CIRC SHORT

[―]

Monitor the number of times that the Smart FET in IPDM E/R detects the over current of the front fog lamp RH circuit.

Note:

This item is monitored only on the Nissan Sentra vehicle with front fog lamp.

HL (HI) LH CIRC MALFUNCTN

[―]

Monitor the number of times that the Smart FET in IPDM E/R reaches the retry upper limit of the headlamp (high) LH circuit.

Note:

When the number of headlamp (high) LH circuit retries count is 20, this item counts 1.

NMB HL (HI) LH CIRC RETRY

[―]

Monitor the number of times that the Smart FET in IPDM E/R permits the retry of the headlamp (high) LH circuit.

Note:

When the number of short circuits in the headlamp (high) LH circuit count is 5 and the ignition switch OFF to ON operation is detected, this item counts 1.

NMB HL (HI) LH CIRC SHORT

[―]

Monitor the number of times that the Smart FET in IPDM E/R detects the over current of the headlamp (high) LH circuit.

HL (HI) RH CIRC MALFUNCTN

[―]

Monitor the number of times that the Smart FET in IPDM E/R reaches the retry upper limit of the headlamp (high) RH circuit.

Note:

When the number of headlamp (high) RH circuit retries count is 20, this item counts 1.

Nmb HL HI (RH) circ retry

[―]

Monitor the number of times that the Smart FET in IPDM E/R permits the retry of the headlamp (high) RH circuit.

Note:

When the number of short circuits in the headlamp (high) RH circuit count is 5 and the ignition switch OFF to ON operation is detected, this item counts 1.

Nmb HL HI (RH) circ short

[―]

Monitor the number of times that the Smart FET in IPDM E/R detects the over current of the headlamp (high) RH circuit.

HL LO (LH) circ malfunctn

[―]

Monitor the number of times that the Smart FET in IPDM E/R reaches the retry upper limit of the headlamp (low) LH circuit.

Note:

When the number of headlamp (low) LH circuit retries count is 20, this item counts 1.

Nmb HL LO (LH) circ retry

[―]

Monitor the number of times that the Smart FET in IPDM E/R permits the retry of the headlamp (low) LH circuit.

Note:

When the number of short circuits in the headlamp (low) LH circuit count is 5 and the ignition switch OFF to ON operation is detected, this item counts 1.

Nmb HL LO (LH) circ short

[―]

Monitor the number of times that the Smart FET in IPDM E/R detects the over current of the headlamp (low) LH circuit.

HL LO (RH) circ malfunctn

[―]

Monitor the number of times that the Smart FET in IPDM E/R reaches the retry upper limit of the headlamp (low) RH circuit.

Note:

When the number of headlamp (low) RH circuit retries count is 20, this item counts 1.

Nmb HL LO (RH) circ retry

[―]

Monitor the number of times that the Smart FET in IPDM E/R permits the retry of the headlamp (low) RH circuit.

Note:

When the number of short circuits in the headlamp (low) RH circuit count is 5 and the ignition switch OFF to ON operation is detected, this item counts 1.

Nmb HL LO (RH) circ short

[―]

Monitor the number of times that the Smart FET in IPDM E/R detects the over current of the headlamp (low) RH circuit.

T LAMP LH CIRC MALFUNCTN

[―]

Monitor the number of times that the Smart FET in IPDM E/R reaches the retry upper limit of the tail lamp LH circuit.

Note:

When the number of tail lamp LH circuit retries count is 20, this item counts 1.

NMB T LAMP LH CIRC RETRY

[―]

Monitor the number of times that the Smart FET in IPDM E/R permits the retry of the tail lamp LH circuit.

Note:

When the number of short circuits in the tail lamp LH circuit count is 5 and the ignition switch OFF to ON operation is detected, this item counts 1.

NMB T LAMP LH CIRC SHORT

[―]

Monitor the number of times that the Smart FET in IPDM E/R detects the over current of the tail lamp LH circuit.

T LAMP RH CIRC MALFUNCTN

[―]

Monitor the number of times that the Smart FET in IPDM E/R reaches the retry upper limit of the tail lamp RH circuit.

Note:

When the number of tail lamp RH circuit retries count is 20, this item counts 1.

NMB T LAMP RH CIRC RETRY

[―]

Monitor the number of times that the Smart FET in IPDM E/R permits the retry of the tail lamp RH circuit.

Note:

When the number of short circuits in the tail lamp RH circuit count is 5 and the ignition switch OFF to ON operation is detected, this item counts 1.

NMB T LAMP RH CIRC SHORT

[―]

Monitor the number of times that the Smart FET in IPDM E/R detects the over current of the tail lamp RH circuit.

Park lamp (RH) circ malfunctn

[―]

Monitor the number of times that the Smart FET in IPDM E/R reaches the retry upper limit of the parking lamp RH circuit.

Note:

When the number of parking lamp RH circuit retries count is 20, this item counts 1.

Nmb park lamp (RH) circ retry

[―]

Monitor the number of times that the Smart FET in IPDM E/R permits the retry of the parking lamp RH circuit.

Note:

When the number of short circuits in the parking lamp RH circuit count is 5 and the ignition switch OFF to ON operation is detected, this item counts 1.

Nmb park lamp (RH) circ short

[―]

Monitor the number of times that the Smart FET in IPDM E/R detects the over current of the parking lamp RH circuit.

BAT DISCHARGE COUNT

[―]

Monitor the cumulative discharge value of the battery.

Note:

When 65000 or more is counted, replace the battery.
This item is monitored only on the Nissan Sentra vehicle with idle start/stop system.

BATTERY STATUS

[OK/NG]

Monitor the battery status from the battery output.

Note:

This item is monitored only on the Nissan Sentra vehicle with idle start/stop system.

Nissan Sentra Vehicle speed

[km/h]

Displays the status of Nissan Sentra vehicle speed signal received from ABS actuator and electric unit (control unit) via CAN communication.

ACTIVE TEST

Test item	Operation	Description
HORN	Off	Note: This item is indicated, but not tested.
HORN	On	Note: This item is indicated, but not tested.
FRONT WIPER	Off	OFF
	Low	Operates the front wiper relay.
	High	Operates the front wiper relay and front wiper high relay.
COMPRESSOR	Off	OFF
COMPRESSOR	On	Operates the A/C compressor (magnetic clutch).
Cooling fan relay	Off	OFF
	Low	Run the cooling fan at low speed.
	High	Run the cooling fan at high speed.
HEADLAMP (high)	Off	OFF
HEADLAMP (high)	On	Operates the headlamp (high) Note: Perform the test with the lighting switch 2ND and the headlamp (low) ON (LED headlamp)
HEADLAMP (low)	Off	OFF
HEADLAMP (low)	On	Operates the headlamp (low).
FRONT FOG LAMP Note: This item is tested only on the Nissan Sentra vehicle with front fog lamp.	Off	OFF
	On	Operates the front fog lamp.
DAYTIME RUNNING LIGHT Note: This item is tested only on the Nissan Sentra vehicle with daytime running light system.	Off	OFF
	On	Operates the daytime running light. Note: Perform the test with the lighting switch 1ST and the parking lamp ON.
PARKING LAMP	Off	OFF
PARKING LAMP	On	Operates the parking lamp. Note: Perform the test with the lighting switch 1ST and the parking lamp ON (LED headlamp)
TAIL LAMP	Off	OFF
TAIL LAMP	On	Operates the tail lamp and license plate lamp.

System

Relay Control System System Description System Description SYSTEM DIAGRAM DESCRIPTION The IPDM E/R activates the internal control circuit to perform relay ON-OFF control according t ...

Other materials:

Power supply and ground circuit
Body control system Body control system : diagnosis procedure Regarding wiring diagram information, refer to bcs-51, "wiring diagram". 1.Check fuses and fusible link Check that the following fuses and fusible link are not blown. Is the fuse blown? Yes >> replace the blown f ...

Dtc Confirmation Procedure
DTC Confirmation Procedure TIRE PRESSURE SENSOR ID REGISTRATION Perform tire pressure sensor ID registration. Refer to Work Procedure. >> GO TO 2. PERFORM DTC CONFIRMATION ...

Trunk room lamp circuit
Description Controls the trunk room lamp (ground side) to turn the trunk room lamp on and off. Diagnosis Procedure Regarding wiring diagram information, refer to inl-17, "wiring diagram". Caution: Before performing the diagnosis, check that the following are normal. Interior roo ...

Nissan Sentra B18 (2020-2025) Service Manual: Diagnosis System (ipdm E/r)

System

Ecu Diagnosis Information

Other materials: