1.CHECK STOP LAMP SWITCH CIRCUIT

1. Turn ignition switch OFF.
2. Check the stop lamp when depressing and releasing the brake pedal.

   Brake pedal | Stop lamp
   Fully released | Not illuminated
   Slightly depressed | Illuminated

Is the inspection result normal?
YES>>GO TO 4.
NO>>GO TO 2.
2.CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT

1. Disconnect stop lamp switch harness connector.
2. Check the voltage between stop lamp switch harness connector and ground.

   Stop lamp switch | Ground | Voltage
   Connector | Terminal
   E110 | 1 | Ground | Battery voltage

Is the inspection result normal?
YES>>GO TO 4.
NO>>GO TO 3.
3.DETECT MALFUNCTIONING PART
Check the following.

- Fuse block (J/B) connector E103
- 10A fuse (No. 7)
- Harness for open or short between stop lamp switch and battery

>>Repair open circuit, short to ground or short to power in harness or connectors.
4.CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1. Disconnect stop lamp switch harness connector.
2. Disconnect ECM harness connector.
3. Check the continuity between stop lamp switch harness connector and ECM harness connector.

   Stop lamp switch | ECM | Continuity
   Connector | Terminal | Connector | Terminal
   E110 | 2 | M107 | 110 | Existed

4. Also check harness for short to ground and short to power.

Is the inspection result normal?
YES>>GO TO 6.
NO>>GO TO 5.
5.DETECT MALFUNCTIONING PART
Check the following.

- Fuse block (J/B) connector E103, M2
- Harness for open or short between ECM and stop lamp switch

>>Repair open circuit, short to ground or short to power in harness or connectors.
6.CHECK STOP LAMP SWITCH
Refer to Component Inspection (Stop Lamp Switch) (GT-R certified NISSAN dealer).
Is the inspection result normal?
YES>>GO TO 7.
NO>>Replace stop lamp switch.
7.CHECK INTERMITTENT INCIDENT
Refer to Intermittent Incident.
>>INSPECTION END