Nissan GT-R (R35) · Service Manual
DRIVER CONTROLS
DRIVER CONTROLS › INTERIOR LIGHTING SYSTEM › COMPONENT DIAGNOSIS
STEP LAMP CIRCUIT
Description
Component Function Check
Diagnosis Procedure
Description
Controls the step lamp (ground side) to turn the step lamp ON and OFF.
Component Function Check
■ CAUTION ■
Before performing the diagnosis, check that the following is normal.
Interior room lamp power supply
Step lamp bulb
1.CHECK STEP LAMP OPERATION
CONSULT-III ACTIVE TEST
Turn ignition switch ON.
Select "STEP LAMP TEST" of BCM (INT LAMP) active test item.
With operating the test items, check that step lamps operation.
On
: Step lamp ON
Off
: Step lamp OFF
Are the step lamps turned?
YES
>>
Step lamp circuit is normal.
NO
>>
Refer to
Diagnosis Procedure
.
Diagnosis Procedure
1.CHECK STEP LAMP OUTPUT
CONSULT-III ACTIVE TEST
Turn ignition switch OFF.
Remove the step lamp bulbs (driver side and passenger side).
Turn ignition switch ON.
Select “STEP LAMP TEST” of BCM (INT LAMP) active test item.
With operating the test item, check continuity between BCM harness connector and ground.
BCM
Ground
Test item
Continuity
Connector
Terminal
STEP LAMP TEST
M119
7
On
Existed
Off
Not existed
Is the measurement value normal?
YES
>>
GO TO 2
.
Fixed ON
>>
GO TO 3
.
Fixed OFF
>>
Replace BCM.
2.CHECK STEP LAMP OPEN CIRCUIT
Turn ignition switch OFF.
Disconnect BCM connector, and step lamp connector.
Check continuity between BCM harness connector and step lamp harness connector.
BCM
Step lamp
Continuity
Connector
Terminal
Connector
Terminal
M119
7
Driver side
D23
2
Existed
Passenger side
D53
2
Does continuity exist?
YES
>>
Replace step lamp.
NO
>>
Repair harnesses or connectors.
3.CHECK STEP LAMP SHORT CIRCUIT
Turn ignition switch OFF.
Check continuity between BCM harness connector and ground.
BCM
Ground
Continuity
Connector
Terminal
M119
7
Not existed
Does continuity exist?
YES
>>
Repair the harnesses or connectors.
NO
>>
Replace BCM.
1.CHECK STEP LAMP OPERATION
CONSULT-III ACTIVE TEST