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Diagnosis Procedure

WARNING: This page is about a different variant/trim than selected.

Regarding Wiring Diagram information, refer to [TRANSFER CONTROL UNIT: WIRING DIAGRAM ].

DIAGNOSIS PROCEDURE

Step Action YES NO
1  CHECK PARK/NEUTRAL POSITION SWITCH SIGNAL 
  1. Turn ignition switch ON.
  2. Check voltage between transfer control unit harness connector M152 terminal 33 and ground.
G06444771G06444772Courtesy of SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP.
G06444771G06444772Courtesy of SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP.

Is the inspection result normal? 		 GO TO 5. GO TO 2.
2  CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND PARK/NEUTRAL POSITION SWITCH 
  1. Turn ignition switch OFF. (Stay for at least 5 seconds.)
  2. Disconnect transfer control unit harness connector and the park/neutral position switch harness connector.
  3. Check continuity between transfer control unit harness connector M152 terminal 33 and park/neutral position switch harness connector F66 terminal 1.
G06444773Courtesy of SUZUKI OF AMERICA CORP.

Continuity should exist. 
Also check harness for short to ground and short to power.
Is the inspection result normal? 		 GO TO 3. Repair or replace damaged parts.
3  CHECK GROUND CIRCUIT 
  1. Turn ignition switch OFF. (Stay for at least 5 seconds.)
  2. Disconnect park/neutral position switch harness connector.
  3. Check continuity between park/neutral position switch harness connector F66 terminal 2 and ground.
G06444774Courtesy of SUZUKI OF AMERICA CORP.

Continuity should exist. 
Also check harness for short to power.
Is the inspection result normal? 		 GO TO 4. Repair open circuit or short to power in harness or connectors.
4  CHECK PARK/NEUTRAL POSITION SWITCH 
  1. Turn ignition switch OFF. (Stay for at least 5 seconds.)
  2. Remove park/neutral position switch. Refer to [4WD SYSTEM: COMPONENT PARTS LOCATION ].
  3. Push and release park/neutral position switch and check continuity between park/neutral position switch terminals 1 and 2.
G06444775G06444776Courtesy of SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP.
G06444775G06444776Courtesy of SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP.

Is the inspection result normal? 		 GO TO 5. Replace park/neutral position switch. Refer to [4WD SYSTEM: COMPONENT PARTS LOCATION ].
5  CHECK TRANSFER CONTROL UNIT 
Check transfer control unit input/output signal. Refer to [TRANSFER CONTROL UNIT: REFERENCE VALUE ].
Is the inspection result normal? 		 Inspection End. Check transfer control unit pin terminals for damage or loose connection with harness connector. If any items are damaged, repair or replace damaged parts.
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