Nissan Sentra B18 (2020-2025) Service Manual: B20d4-11 Tail Lamp Lh Pwr Sply Circ
Dtc Description
DTC Description
DTC DETECTION LOGIC
|
DTC No. |
CONSULT screen items (Trouble diagnosis content) |
DTC detection condition |
||
|---|---|---|---|---|
|
B20D4–11 |
TAIL LAMP LH PWR SPLY CIRC (Tail lamp left hand 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
-
Tail lamp LH (body side) bulb
-
Tail lamp LH (body side) bulb socket or harness
-
Tail lamp RH (body side) bulb
-
Tail lamp RH (body side) bulb socket or harness
-
Tail lamp LH (trunk lid side) bulb
-
Tail lamp LH (trunk lid side) bulb socket or harness
-
Tail lamp RH (trunk lid side) bulb
-
Tail lamp RH (trunk lid side) bulb socket or harness
-
License plate lamp LH bulb
-
License plate lamp RH bulb
-
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 tail lamp (LH/RH) circuits until the parking lamp, license plate lamp, side marker lamp and tail lamp ON conditions are no longer satisfied.
Dtc Confirmation Procedure
DTC Confirmation Procedure
-
PRECONDITIONING
-
CONSULT-
Ignition switch ON.
-
Select “T LAMP LH CIRC MALFUNCTN” and “T LAMP RH CIRC MALFUNCTN” in “Data Monitor” mode of “IPDM E/R”.
-
Check the monitor status.
Monitor item
Monitor status
T LAMP LH CIRC MALFUNCTN
0
1
T 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 tail lamp LH, tail lamp RH, license plate lamp LH or license plate 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
DTC Diagnosis Procedure
-
CHECK TAIL LAMP POWER SUPPLY CIRCUIT (SHORT)
-
-
Ignition switch OFF.
-
Disconnect the following connectors:
-
IPDM E/R
-
Front combination lamp LH
-
Front combination lamp RH
-
Rear combination lamp LH (body side)
-
Rear combination lamp LH (trunk lid side)
-
Rear combination lamp RH (body side)
-
Rear combination lamp RH (trunk lid side)
-
License plate lamp LH
-
License plate lamp RH
-
-
Check continuity between IPDM E/R harness connector and ground.
IPDM E/R
—
Continuity
Connector
Terminal
E47
4
Ground
No
17
-
Is the inspection result normal?
YES >>GO TO 2.
NO >>Repair or replace harness.
-
-
CHECK TAIL LAMP POWER SUPPLY
-
CONSULT-
Connect IPDM E/R connector.
-
Ignition switch ON.
-
Select “TAIL LAMP” in “Active Test” mode of “IPDM E/R”.
-
With operating the test item, check voltage between rear combination lamp (body side) harness connector and ground.
+
-
Test item
Voltage
(Approx.)
Rear combination lamp (body side)
Connector
Terminal
RH
B42
2
Ground
TAIL LAMP
On
Battery voltage
Off
0V
LH
B25
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 TAIL LAMP
-
Check the tail lamp. Refer to Component Inspection.
Is the inspection result normal?
YES >>GO TO 4.
NO >>Repair or replace the malfunctioning part.
-
-
CHECK LICENSE PLATE LAMP
-
Check the license plate lamp. Refer to Component Inspection.
Is the inspection result normal?
YES >>GO TO 5.
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.
-
Other materials:
Oil Seal
Valve Oil Seal
Removal and Installation
Removal and Installation
REMOVAL
Remove
camshafts. Refer to Removal and Installation.
Remove
valve lifters. Refer to Exploded View.
Rotate
crankshaft and set piston whose valve oil seal is to be removed to
TDC. This will prev ...
Operation
Switch Name and Function
Switch Name and Function
STEERING SWITCH
The steering switch is located on the steering
wheel.
Transmits the steering switch signal to the
combination meter.
...
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Dtc Description
DTC Description
Note:
The Signal Tech II Tool [– (NI-50190)] can be used
to perform the following functions: Refer to the Signal Tech II User
Guide for additional information.
Activate and display TPMS sensor IDs
Display tire pressure rep ...