Nissan Sentra B18 (2020-2025) Service Manual: B20d2-11 Parking Lamp Pwr Sply Circ
Dtc Description
DTC DETECTION LOGIC
|
DTC No. |
CONSULT screen items (Trouble diagnosis content) |
DTC detection condition |
||
|---|---|---|---|---|
|
B20D2–11 |
PARKING LAMP PWR SPLY CIRC (Parking lamp power supply circuit) |
[CIRCUIT SHORT TO GROUND] |
Diagnosis condition |
When the parking lamp, license plate lamp, side marker lamp and tail lamp ON conditions are satisfied (Smart FET inside IPDM E/R is ON) |
|
Signal (terminal) |
The following power supply circuit:
|
|||
|
Threshold |
Overcurrent is detected |
|||
|
Diagnosis delay time |
1 second or less |
|||
POSSIBLE CAUSE
-
Harness or connector
-
Parking lamp LH bulb
-
Parking lamp RH bulb
-
Parking lamp LH bulb socket or harness
-
Parking lamp RH bulb socket or harness
-
Front combination lamp LH
-
LED (front side marker lamp)
-
-
Front combination lamp RH
-
LED (front side marker lamp)
-
-
IPDM E/R
FAIL-SAFE
Shuts off the power supply to the parking lamp (LH/RH) circuit until the parking lamp, license plate lamp, side marker lamp and tail lamp ON conditions are no longer satisfied.
Dtc Confirmation Procedure
-
PRECONDITIONING
-
CONSULT-
Ignition switch ON.
-
Select "Park lamp (LH) circ malfunctn" and "Park lamp (RH) circ malfunctn" in “Data Monitor” mode of “IPDM E/R”.
-
Check the monitor status.
Monitor item
Monitor status
Park lamp (LH) circ malfunctn
0
1
Park lamp (RH) circ malfunctn
0
1
-
What is the monitor status?
“0”>>GO TO 2.
“1”>>A short circuit is detected multiple times in the parking lamp LH or parking lamp RH power supply circuit, and damage accumulates at the Smart FET inside the IPDM E/R. For this reason, IPDM E/R does not turn ON the Smart FET. Because the DTC cannot be reproduced in this state, refer to DTC Diagnosis Procedure and replace IPDM E/R after the malfunctioning part is repaired. Refer to Removal and Installation.
-
-
PERFORM DTC CONFIRMATION PROCEDURE
-
CONSULT-
Ignition switch OFF.
-
Ignition switch ON.
-
Turn lighting switch 1ST.
-
Select “Self Diagnostic Result” mode of “IPDM E/R”.
-
Check DTC.
-
Is DTC detected?
YES >>Refer to DTC Diagnosis Procedure.
NO >>To check malfunction symptom before repair: Refer to Intermittent Incident.
NO >>Confirmation after repair: Inspection End.
-
Dtc Diagnosis Procedure
-
CHECK PARKING LAMP POWER SUPPLY CIRCUIT (SHORT)
-
-
Ignition switch OFF.
-
Turn lighting switch OFF.
-
Disconnect IPDM E/R connector, front combination lamp LH connector and front combination lamp RH connector.
-
Check continuity between IPDM E/R harness connectors and ground.
IPDM E/R
—
Continuity
Connector
Terminal
RH
E44
61
Ground
No
LH
E48
56
-
Is the inspection result normal?
YES >>GO TO 2.
NO >>Repair or replace harness.
-
-
CHECK PARKING LAMP POWER SUPPLY
-
CONSULT-
Connect IPDM E/R connector.
-
Ignition switch ON.
-
Select “PARKING LAMP” in “Active Test” mode of “IPDM E/R”.
-
With operating the test item, check voltage between front combination lamp harness connector and ground.
+
-
Test item
Voltage
(Approx.)
Front combination lamp
Connector
Terminal
RH
E20
1
Ground
PARKING LAMP
On
Battery voltage
Off
0V
LH
E21
On
Battery voltage
Off
0V
-
Is the inspection result normal?
YES >>GO TO 3.
NO >>Replace IPDM E/R. Refer to Removal and Installation.
-
-
CHECK PARKING LAMP
-
Check the parking lamp. Refer to Component Inspection.
Is the inspection result normal?
YES >>GO TO 4.
NO >>Repair or replace the malfunctioning part.
-
-
CHECK FRONT SIDE MARKER LAMP
-
Check the front side marker lamp. Refer to Component Inspection.
Is the inspection result normal?
YES >>Inspection End.
NO >>Repair or replace the malfunctioning part.
-
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