Diagnosis Procedure
- CHECK SEAT MEMORY SWITCH SIGNAL
- Turn ignition switch OFF.
- Disconnect seat memory switch connector.
- Turn ignition switch ON.
- Check voltage between driver seat control unit harness connector and ground.
(+) (-) Voltage (V) Seat memory switch Connector Terminals D9 1 Ground 4 - 6 2 3 Is the inspection result normal?
YES
GO TO STEP 3 .
NO
GO TO STEP 2 .
- CHECK MEMORY SWITCH CIRCUIT
- Turn ignition switch OFF.
- Disconnect driver seat control unit connector.
- Check continuity between driver seat control unit harness connector and seat memory switch harness connector.
Driver seat control unit Seat memory switch Continuity Connector Terminal Connector Terminal B601 22 D9 1 Existed 6 2 28 3 - Check continuity between driver seat control unit harness connector and ground.
Driver seat control unit Ground Continuity Connector Terminal B601 22 Not existed 6 28
Is the inspection result normal?
YES
Replace driver seat control unit. Refer to REMOVAL AND INSTALLATION .
NO
Repair or replace harness or connector.
- CHECK MEMORY SWITCH GROUND CIRCUIT
Check continuity between seat memory switch harness connector and ground.
Seat memory switch Ground Continuity Connector Terminal D9 4 Existed Is the inspection result normal?
YES
GO TO STEP 4 .
NO
Repair or replace harness or connector.
- CHECK SEAT MEMORY SWITCH
Refer to COMPONENT INSPECTION .
Is the inspection result normal?
YES
GO TO STEP 5 .
NO
Replace seat memory switch. Refer to REMOVAL AND INSTALLATION .
- CHECK INTERMITTENT INCIDENT
Refer to INTERMITTENT INCIDENT .
INSPECTION END