Stop Lamp Switch Check

With CONSULT 

Check stop lamp switch ("STOP LAMP SW") in "DATA MONITOR" mode with CONSULT.

Without CONSULT 

1. Turn ignition switch OFF.
2. Disconnect BCM.
3. Check voltage between BCM connector M18 terminal 9 and ground.

   Connector	Terminals		Condition	Voltage (V) (Approx.)
   	(+)	(-)
   M18	9	Ground	Brake pedal depressed	Battery voltage
   			Brake pedal released	0

   Fig 1: Checking Stop Lamp Switch Input Signal

   Courtesy of NISSAN NORTH AMERICA, INC.

   OK or NG 

   OK: Stop lamp switch circuit is OK.

   NG: GO TO 2.

Check voltage between stop lamp switch harness connector E60 terminal 1 and ground.

1 - Ground: Battery voltage 

Fig 2: Checking Stop Lamp Switch Power Supply Circuit

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OK or NG 

OK: GO TO 3.

NG: Repair or replace harness between stop lamp switch power supply circuit and fuse.

Check continuity between stop lamp switch terminals 1 and 2.

Fig 3: Checking Stop Lamp Switch Operation

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OK or NG 

OK: GO TO 4.

NG: Replace stop lamp switch.

1. Check continuity between BCM connector M18 (A) terminal 9 and stop lamp switch connector E60 (B) terminal 2.

   9 - 2: Continuity should exist  .

2. Check continuity between BCM connector M18 (A) terminal 9 and ground.

   9 - Ground: Continuity should not exist  .

   Fig 4: Checking Stop Lamp Switch Circuit

   Courtesy of NISSAN NORTH AMERICA, INC.

   OK or NG 

   OK: Check condition of harness and connector.

   NG: Repair or replace harness.