Diagnosis Procedure
WARNING: This page is about a different car, the 2017 Nissan Sentra. However, it is still accessible from the selected car via links, so may be relevant.
Regarding Wiring Diagram information, refer to WIRING DIAGRAM .
- CHECK STOP LAMP SWITCH INPUT SIGNAL 1
- Turn ignition switch OFF.
- Disconnect BCM connector.
- Check voltage between BCM harness connector and ground.
(+) (-) Voltage (V)
(Approx.)BCM Connector Terminal M83 66 Ground Battery voltage
Is the inspection normal?
YES
GO TO STEP 2 .
NO-1
Check 10 A fuse [No. 30, located in the fuse block (J/B)].
NO-2
Check harness for open or short between BCM and fuse.
- CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
- Disconnect stop lamp switch connector.
- Check voltage between stop lamp switch harness connector and ground.
(+) (-) Voltage (V)
(Approx.)Stop lamp switch Connector Terminal E60 1 Ground Battery voltage
Is the inspection result normal?
YES
GO TO STEP 3 .
NO
Check harness for open or short between stop lamp switch and fuse.
- CHECK STOP LAMP SWITCH INPUT SIGNAL 2
- Connect stop lamp switch connector.
- Check voltage between BCM harness connector and ground.
(+) (-) Condition Voltage (V)
(Approx.)BCM Connector Terminal M84 9 Ground Brake pedal Depressed Battery voltage Not depressed 0
Is the inspecting result normal?
YES
GO TO STEP 4 .
NO
GO TO STEP 5 .
- REPLACE BCM
- Replace BCM. Refer to REMOVAL AND INSTALLATION .
- Perform initialization of BCM and registration of all Intelligent Keys using CONSULT.
Inspection End.
- CHECK STOP LAMP SWITCH CIRCUIT
- Disconnect stop lamp switch connector.
- Check continuity between stop lamp switch harness connector and BCM harness connector.
Stop lamp switch BCM Continuity Connector Terminal Connector Terminal E60 2 M84 9 Yes - Check continuity between stop lamp switch harness connector and ground.
Stop lamp switch Ground Continuity Connector Terminal E60 2 No
Is the inspection result normal?
YES
GO TO STEP 6 .
NO
Repair or replace harness.
- CHECK STOP LAMP SWITCH
Refer to COMPONENT INSPECTION .
Is the inspection result normal?
YES
GO TO STEP 7 .
NO
Replace stop lamp switch. Refer to EXPLODED VIEW WITH TORQUE SPECIFICATIONS .
- CHECK INTERMITTENT INCIDENT
Refer to INTERMITTENT INCIDENT .
Inspection End.