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Home >> Suzuki >> 2012 >> Equator Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (Transfer (4WD) System) >> Diagnostic Information and Procedures >> DTC P1814: Wait Detection Switch >> Diagnosis Procedure

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 WAIT DETECTION SWITCH SIGNAL 
  1. With SDT 
    1. Start engine.
    2. Select "Data list" mode for "4WD" with SDT.
    3. Read out the value of "WAIT DETCT SW".
G06444763G06444764G06444765Courtesy of SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP.

  1. 2) Without SDT 
    1. Start engine.
    2. Check voltage between transfer control unit harness connector terminal and ground.
G06444763G06444764G06444765Courtesy of SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP.
G06444763G06444764G06444765Courtesy of SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP.

Are the inspection results normal? 		 GO TO 5. GO TO 2.
2  CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND WAIT DETECTION SWITCH 
  1. Turn ignition switch "OFF". (Stay for at least 5 seconds.)
  2. Disconnect transfer control unit harness connector and the wait detection switch harness connector.
  3. Check continuity between transfer control unit harness connector M152 terminal 17 and wait detection switch harness connector F59 terminal 10.
G06444766Courtesy of SUZUKI OF AMERICA CORP.

Continuity should exist. 
Also check harness for short to ground and short to power.
Is there continuity? 		 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 wait detection switch harness connector.
  3. Check continuity between wait detection switch harness connector F59 terminal 11 and ground.
G06444767Courtesy of SUZUKI OF AMERICA CORP.

Continuity should exist. 
Also check harness for short to power.
Is there continuity? 		 GO TO 4. Repair open circuit or short to power in harness or connectors.
4  CHECK WAIT DETECTION SWITCH 
  1. Turn ignition switch "OFF". (Stay for at least 5 seconds.)
  2. Disconnect wait detection switch harness connector.
  3. Remove wait detection switch. Refer to [4WD SYSTEM: COMPONENT PARTS LOCATION ].
  4. Push and release wait detection switch and check continuity between wait detection switch terminals 10 and 11.
G06444768G06444769Courtesy of SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP.
G06444768G06444769Courtesy of SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP.

Are the inspection results normal? 		 GO TO 5. Replace wait detection switch.
5  CHECK TRANSFER CONTROL UNIT 
Check transfer control unit input/output signal. Refer to [TRANSFER CONTROL UNIT: REFERENCE VALUE ].
Are the inspection results normal? 		 GO TO 6. Check transfer control unit pin terminals for damage or loose connection with harness connector. If any items are damaged, repair or replace damaged parts.
6  CHECK DTC 
Drive the vehicle and then perform "DTC check".
Is DTC P1814 displayed? 		 Replace transfer control unit. Refer to [TRANSFER CONTROL UNIT: REMOVAL AND INSTALLATION ]. Inspection End.
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