Nissan X-Trail 32. Manual - part 1170

B20D4 TAIL LAMP LH POWER SUPPLY CIRCUIT

EXL-137

< DTC/CIRCUIT DIAGNOSIS >

[LED HEADLAMP]

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EXL

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License plate lamp LH

License plate lamp RH

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

CHECK LICENSE PLATE LAMP

1.

Remove license plate lamp bulb.

2.

Check resistance of license plate lamp terminals.

License plate lamp LH

License plate lamp RH

Is the inspection result normal?

YES

>> Replace the corresponding license plate lamp bulb. Refer to 

EXL-209, "Replacement"

.

NO

>> Repair or replace the corresponding license plate lamp bulb socket.

License plate lamp LH

Resistance

Terminal

2

1

Except 0 

Ω

License plate lamp RH

Resistance

Terminal

2

1

Except 0 

Ω

License plate lamp LH

Resistance

Terminal

2

1

Except 0 

Ω

License plate lamp RH

Resistance

Terminal

2

1

Except 0 

Ω

EXL-138

< DTC/CIRCUIT DIAGNOSIS >

[LED HEADLAMP]

B20D5 TAIL LAMP RH POWER SUPPLY CIRCUIT

B20D5 TAIL LAMP RH POWER SUPPLY CIRCUIT

DTC Description

INFOID:0000000010788828

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Harness or connector
• Tail lamp RH (body side) bulb
• Tail lamp RH (back door side) bulb
• Tail lamp RH (body side) bulb socket or harness
• Tail lamp RH (back door side) bulb socket or harness
• IPDM E/R

FAIL-SAFE

Shuts off the power supply to the following power supply circuits until the parking lamp, license plate lamp, and
tail lamp ON conditions are no longer satisfied.
• Tail lamp RH (body side)
• Tail lamp RH (back door side)

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

With CONSULT

1.

Turn ignition switch ON.

2.

Select “T LAMP RH CIRC MALFUNCTN” in “Data Monitor” mode of “IPDM E/R” using CONSULT.

3.

Check the monitor status.

What is the monitor status?

“0”

>> GO TO 2.

“1”

>> A short circuit is detected multiple times in the tail lamp RH (body side) or tail lamp RH (back door

side) 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, perform 

EXL-139, "Diagnosis Procedure"

 and replace IPDM E/R after the malfunc-

tioning part is repaired. Refer to 

PCS-60, "Removal and Installation"

. 

2.

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

1.

Turn ignition switch OFF.

2.

Turn ignition switch ON.

3.

Turn lighting switch 1ST.

4.

Select “Self Diagnostic Result” mode of “IPDM E/R” using CONSULT.

5.

Check DTC.

Is DTC detected?

YES

>> Refer to 

EXL-139, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to 

GI-44, "Intermittent Incident"

.

NO-2

>> Confirmation after repair: INSPECTION END

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

B20D5

TAIL LAMP RH PWR SPLY CIRC
(Tail lamp right hand power supply circuit)

[CIRC 
SHORT TO 
GRND]

When the parking lamp, license plate lamp, and tail lamp 
ON conditions are satisfied (smart FET inside IPDM E/R 
is ON), and overcurrent is detected in the following power 
supply circuit.
• Tail lamp RH (body side)
• Tail lamp RH (back door side)

Monitor item

Monitor status

T LAMP RH CIRC MALFUNCTN

0

1

B20D5 TAIL LAMP RH POWER SUPPLY CIRCUIT

EXL-139

< DTC/CIRCUIT DIAGNOSIS >

[LED HEADLAMP]

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Diagnosis Procedure

INFOID:0000000010788829

1.

CHECK TAIL LAMP RH POWER SUPPLY CIRCUIT (SHORT)

1.

Turn ignition switch OFF.

2.

Turn lighting switch OFF.

3.

Disconnect the following connectors.

-

IPDM E/R

-

Rear combination lamp RH (body side)

-

Rear combination lamp RH (back door side)

4.

Check continuity between IPDM E/R harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness.

2.

CHECK TAIL LAMP RH POWER SUPPLY

With CONSULT

1.

Connect IPDM E/R connector.

2.

Turn ignition switch ON

3.

Select “TAIL LAMP” in “Active Test” mode of “IPDM E/R” using CONSULT.

4.

With operating the test items, check the voltage between rear combination lamp RH (body side) harness
connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace IPDM E/R. Refer to 

PCS-60, "Removal and Installation"

.

3.

CHECK TAIL LAMP RH

Check the tail lamp RH. Refer to 

EXL-139, "Component Inspection"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair or replace the malfunctioning part.

Component Inspection

INFOID:0000000010788830

1.

CHECK TAIL LAMP RH

1.

Turn ignition switch OFF.

2.

Disconnect rear combination lamp RH (body side) and rear combination lamp RH (back door side) con-
nector.

3.

Check resistance of rear combination lamp RH (body side) and rear combination lamp RH (back door
side) terminals.

IPDM E/R 

—

Continuity

Connector

Terminal

E10

17

Ground

Not existed

+

-

Test item

Voltage

Rear combination lamp RH (body 

side)

Connector

Terminal

B59

1

Ground

TAIL LAMP

On

9 – 16 V

Off

0 – 1 V

EXL-140

< DTC/CIRCUIT DIAGNOSIS >

[LED HEADLAMP]

B20D5 TAIL LAMP RH POWER SUPPLY CIRCUIT

Rear combination lamp RH (body side)

Tail lamp RH (back door side)

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

CHECK TAIL LAMP RH

1.

Remove tail lamp RH bulb

2.

Check resistance of rear combination lamp RH (body side) and rear combination lamp RH (back door
side) terminals.

Rear combination lamp RH (body side)

Tail lamp RH (back door side)

Is the inspection result normal?

YES

>> Replace the corresponding tail lamp RH bulb. Refer to 

EXL-204, "REAR COMBINATION LAMP

(BODY SIDE) : Replacement"

 (body side) or 

EXL-206, "REAR COMBINATION LAMP (BACK

DOOR SIDE) : Replacement"

 (back door side).

NO

>> Repair or replace the corresponding tail lamp RH bulb socket and harness.

Rear combination lamp RH (body 

side)

Resistance

Terminal

1

4

Except 0 

Ω

Rear combination lamp RH (back 

door side)

Resistance

Terminal

1

3

Except 0 

Ω

Rear combination lamp RH (body 

side)

Resistance

Terminal

1

4

Except 0 

Ω

Rear combination lamp RH (back 

door side)

Resistance

Terminal

1

3

Except 0 

Ω