Nissan Sentra manuals

Nissan Sentra Service Manual: Dtc/circuit diagnosis

Nissan Sentra Service Manual / Electrical & power control / Power control system / IPDM E/R (With i-key) / Dtc/circuit diagnosis

U1000 can comm circuit

Description

Refer to LAN-7, "CAN COMMUNICATION SYSTEM : System Description".

Dtc logic

DTC DETECTION LOGIC

CONSULT Display

 DTC Detection Condition

 Possible Cause
CAN COMM CIRCUIT [U1000] When IPDM E/R cannot communicate with CAN communication signal continuously for 2 seconds or more In CAN communication system, any item (or items) of the following listed below is malfunctioning.
  • Transmission
  • Receiving (ECM)
  • Receiving (BCM)
  • Receiving (Combination meter)

Diagnosis procedure

1. PERFORM SELF DIAGNOSTIC RESULT

  1. Turn ignition switch ON and wait for 2 second or more.
  2. Check “SELF-DIAG RESULTS” of IPDM E/R.

Is “CAN COMM CIRCUIT” displayed? YES >> Refer to LAN-16, "Trouble Diagnosis Flow Chart".

NO >> Refer to GI-39, "Intermittent Incident".

B2098 ignition relay on stuck

Dtc logic

DTC DETECTION LOGIC

CONSULT Display

 DTC Detection Condition

 Possible Cause
IGN RELAY ON [B2098] The ignition relay ON is detected for 1 second at ignition switch OFF (CPU monitors the status at the contact and excitation coil circuits of the ignition relay inside it) IPDM E/R

DTC CONFIRMATION PROCEDURE

1.PERFORM DTC CONFIRMATION PROCEDURE

  1. Turn the power supply position to start under the following conditions and wait for at least 1 second.

CVT model

M/T model

  1. Check “Self-diagnostic result” with CONSULT.

Is DTC detected? YES >> Refer to PCS-27, "Diagnosis Procedure".

NO >> Inspection End.

Diagnosis procedure

1. PERFORM SELF DIAGNOSTIC RESULT

Perform Self Diagnostic Result of IPDM E/R using CONSULT.

Is display history of DTC B2098 CRNT? YES >> Replace IPDM E/R. Refer to PCS-30, "Removal and Installation".

NO >> Refer to GI-39, "Intermittent Incident".

B2099 ignition relay off stuck

Dtc logic

DTC DETECTION LOGIC

CONSULT Display

 DTC Detection Condition

 Possible Cause
IGN RELAY OFF [B2099] The ignition relay OFF is detected for 1 second at ignition switch ON (CPU monitors the status at the contact and excitation coil circuits of the ignition relay inside it) IPDM E/R

DTC CONFIRMATION PROCEDURE

1.PERFORM DTC CONFIRMATION PROCEDURE

  1. Turn the power supply position to start under the following conditions and wait for at least 1 second.

CVT model

M/T model

  1. Check “Self-diagnostic result” with CONSULT

Is DTC detected? YES >> Refer to PCS-28, "Diagnosis Procedure".

NO >> Inspection End.

Diagnosis procedure

1. PERFORM SELF DIAGNOSTIC RESULT

Perform Self Diagnostic Result of IPDM E/R using CONSULT.

Is display history of DTC B2099 CRNT? YES >> Replace IPDM E/R. Refer to PCS-30, "Removal and Installation".

NO >> Refer to GI-39, "Intermittent Incident".

Power supply and ground circuit

Diagnosis procedure

Regarding Wiring Diagram information, refer to PCS-21, "Wiring Diagram".

1. Check fuse and fusible links

Check that the following ipdm e/r fusible links are not blown.

Is the fusible link blown?


Is the fusible link blown? Yes >> replace the blown fusible link after repairing the affected circuit.

No >> go to 2

2. Check power supply circuit

  1. Disconnect ipdm e/r connector e42 and e44.
  2. Check voltage between ipdm e/r connector e42 and e44 and ground.

Is the inspection result normal?


Is the inspection result normal? Yes >> go to 3

No >> repair harness or connectors.

3. Check ground circuit

  1. Turn ignition switch OFF.
  2. Disconnect ipdm e/r connector e47 and e48.
  3. Check continuity between ipdm e/r connector e47 and e48 and ground.

Is the inspection result normal?


Is the inspection result normal? Yes >> inspection end.

No >> repair harness or connectors.

Wiring diagram
Ipdm e/r (intelligent power distribution module engine room) Wiring diagram ...

Removal and installation
Ipdm e/r Exploded view Ipdm e/r Ipdm e/r cover a Ipdm e/r cover b Removal and installation Caution: Ipdm e/r integrated relays are not serviceable and must not be removed from unit. ...

Other materials:

System description
Component parts Component parts location Instrument lower finisher Component description Eco mode switch The ECO mode switch is installed to the instrument lower finisher. When the eco mode indicator lamp on the combination meter is off and the eco mode switch is pressed, t ...

Door handle
Front door handle Front door handle : exploded view Outside handle bracket Front gasket Outside handle Intelligent key button Door key cylinder rod Inside handle assembly Rear gasket Front door handle : removal and installation - inside handle REMOVAL Remove front door ...

B0098 Front door satellite sensor RH
Description DTC B0098 FRONT DOOR SATELLITE SENSOR RH The front door satellite sensor RH is wired to the air bag diagnosis sensor unit. The air bag diagnosis sensor unit will monitor the front door satellite sensor RH for internal failures and its circuits for communication errors. PART LOCA ...

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