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Home >> Suzuki >> 2011 >> Grand Vitara Limited, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 118 (Lighting Systems) >> Diagnostic Information and Procedures >> Optical Sensor Circuit Check >> Diagnosis Procedure
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Diagnosis Procedure

WARNING: This page is about a different car, the 2011 Suzuki Equator. However, it is still accessible from the selected car via links, so may be relevant.

Regarding Wiring Diagram information, refer to [AUTO LIGHT SYSTEM: WIRING DIAGRAM ].

DIAGNOSIS PROCEDURE CHART

Step Action YES NO
1  CHECK OPTICAL SENSOR GROUND CIRCUIT 
  1. Turn the ignition switch OFF.
G00512522G00512523Courtesy of SUZUKI OF AMERICA CORP.
G00512522G00512523Courtesy of SUZUKI OF AMERICA CORP.

  1. 2. Disconnect BCM connector M18 and optical sensor connector M145.
  2. 3. Check continuity between BCM harness connector and optical sensor harness connector.
  3. 4. Check continuity between BCM harness connector and ground.

Are continuity results as specified? 		 GO TO 2 Repair harness or connector.
2  CHECK OPTICAL SENSOR SIGNAL CIRCUIT 
  1. Check continuity between BCM harness connector and optical sensor harness connector.

  1. 2. Check continuity between BCM harness connector and ground.
G00512524G00512525Courtesy of SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP.
G00512524G00512525Courtesy of SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP.

Are continuity results as specified? 		 Replace the optical sensor. Refer to [Optical Sensor: Removal and Installation ]. Repair the harnesses or connectors.
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