Turn Signal Lamp Does Not Operate

Check bulb standard of each turn signal lamp is correct.

OK or NG 

1. OK : GO TO 2.
2. NG : Replace turn signal lamp bulb.

Select BCM on CONSULT-II. Carry out "BCM C/U" self-diagnosis.

Displayed results of self-diagnosis 

Diagnosis system 1 - 5: Combination switch system malfunction.

No malfunction detected: GO TO 3.

Fig 1: Displaying Self-Diagnostic Results

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Select "BCM" on CONSULT-II. With "FLASHER" data monitor, check that "TURN SIGNAL R" and "TURN SIGNAL L" turn ON-OFF linked with operation of turn signal switch.

1. When turn signal switch LH position :TURN SIGNAL L ON 
2. When turn signal switch RH position :TURN SIGNAL R ON 

Fig 2: Displaying Data Monitor

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OK or NG 

1. OK : GO TO 4.
2. NG : Replace lighting switch.

1. Select "BCM" on CONSULT-II. Select "FLASHER" active test.
2. Check that "FLASHER RIGHT" and "FLASHER LEFT" operate.
   1. Turn signal lamp: Should turn ON 

   OK or NG 

   1. OK : Replace BCM.
   2. NG : GO TO 5.

Fig 3: Displaying Active Test

Courtesy of NISSAN MOTOR CO., U.S.A.

1. Turn ignition switch OFF.
2. Disconnect BCM connector and all turn signal lamp connectors.
3. Check continuity (short circuit) between BCM harness connector M1 terminal 21(PU/W) and ground.
   1. Continuity not should exist 
4. Check continuity (short circuit) between BCM harness connector M1 terminal 22(G/W) and ground.
   1. Continuity not should exist 

OK or NG 

1. OK : Replace BCM.
2. NG : After repairing harness be sure to disconnect battery negative cable, and then reconnect it.

Fig 4: Checking Continuity (Short Circuit) Between BCM Harness Connector Terminal And Ground

Courtesy of NISSAN MOTOR CO., U.S.A.