LDW Switch Circuit Inspection

Check LDW system ON indicator operation when LDW switch is ON/OFF.

OK or NG 

1. OK: LDW system ON indicator is OK. Return to "SYMPTOM CHART ".
2. NG: GO TO 2.

Check voltage between LDW camera unit harness connector R9 terminal 9 (G) and ground.

1. 9 (G) - Ground 
2. When LDW switch is pushed: Approx. 0 V 
3. When LDW switch is released: Approx. 5 V 

OK or NG 

1. OK: GO TO  6.
2. NG: GO TO 3.

Fig 1: Checking Voltage Between LDW Camera Unit Harness Connector R9 Terminal 9 And Ground

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

1. Turn ignition switch OFF.
2. Disconnect LDW switch connector.
3. Check continuity between LDW switch connector M96 terminal 6 (B) and ground.
   1. 6 (B) - Ground: Continuity should exist. 

OK or NG 

1. OK: GO TO 4.
2. NG: Repair harness or connector.

Fig 2: Checking Continuity Between LDW Switch Connector M96 Terminal 6 And Ground

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

1. Disconnect LDW camera unit connector.
2. Check continuity between LDW camera unit harness connector R9 terminal 9 (G) and LDW switch harness connector M96 terminal 7 (G).
   1. 9 (G) - 7 (G): Continuity should exist. 
3. Check continuity between LDW camera unit harness connector R9 terminal 9 (G) and ground.
   1. 9 (G) - Ground: Continuity should not exist. 

OK or NG 

1. OK: GO TO 5.
2. NG: Repair harness or connector.

Fig 3: Checking Continuity Between LDW Camera Unit Harness Connector R9 Terminal 9 And Ground

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Check LDW switch.

1. 6-7 
2. When LDW switch is pushed: Continuity should exist. 
3. When LDW switch is released: Continuity should not exist. 

OK or NG 

1. OK: Replace LDW camera unit.
2. NG: Replace LDW switch.

Fig 4: Checking Continuity Between LDW Switch Terminals

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Check LDW system ON indicator operation "SYSTEM ON LAMP DRIVE" in "ACTIVE TEST" mode with CONSULT-II.

1. "SYSTEM ON LAMP DRIVE" 
2. Touch "ON": LDW system ON indicator illuminates. 
3. Touch "OFF": LDW system ON indicator turns OFF. 

OK or NG 

1. OK: Replace LDW camera unit.
2. NG: GO TO 7.

Fig 5: CONSULT-II Diagnosis Function Display

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1. Turn ignition switch OFF.
2. Disconnect LDW switch connector.
3. Turn ignition switch ON.
4. Check voltage between LDW switch harness connector M96 terminal 3 (G/R) and ground.
   1. 3 (G/R) - Ground: Battery voltage 

OK or NG 

1. OK: GO TO 8.
2. NG: Check harness between fuse and LDW switch.

Fig 6: Checking Voltage Between LDW Switch Harness Connector M96 Terminal 3 And Ground

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1. Disconnect LDW camera unit connector.
2. Check continuity between LDW camera unit harness connector R9 terminal 4 (Y) and LDW switch harness connector M96 terminal 2 (Y).
   1. 4 (Y) - 2 (Y): Continuity should exist. 
3. Check continuity between LDW camera unit harness connector R9 terminal 4 (Y) and ground.
   1. 4 (Y) - Ground: Continuity should not exist. 

OK or NG 

1. OK: GO TO 9.
2. NG: Repair harness or connector.

Fig 7: Checking Continuity Between LDW Camera Unit Harness Connector R9 Terminal 4 And Ground

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

1. Connect LDW switch connector.
2. Turn ignition switch ON.
3. Ground LDW switch harness connector M96 terminal 2 (Y).
   1. 2 (Y) - Ground: LDW system ON indicator should illuminate. 

OK or NG 

1. OK: Replace LDW camera unit.
2. NG: Replace LDW switch.

Fig 8: Identifying Ground LDW Switch Harness Connector M96 Terminal 2

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