Power Supply and Ground Circuit

POWER SUPPLY AND GROUND CIRCUIT

CLIMATE CONTROLLED SEAT CONTROL UNIT : Diagnosis Procedure

Regarding Wiring Diagram information, refer to "Wiring Diagram" Climate Controlled Seat System.

DRIVER SIDE


1. CHECK FUSE

Check if any of the following fuses are blown.





Is the fuse blown?
YES- Replace the blown fuse after repairing the affected circuit.
NO- GO TO 2.

2. CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT (DRIVER SIDE) POWER SUPPLY

1.Turn ignition switch OFF.
2.Disconnect climate controlled seat control unit (driver side) connector.
3.Turn ignition switch ON.
4.Check voltage between climate controlled seat control unit (driver side) harness connector and ground.





Is the inspection result normal?
YES- GO TO 7.
NO- GO TO 3.

3. CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT (DRIVER SIDE) POWER SUPPLY CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect climate controlled seat relay.
3.Check continuity between climate controlled seat control unit (driver side) harness connector and climate controlled seat relay harness connector.





4.Check continuity between climate controlled seat control unit (driver side) harness connector and ground.





Revision: March 20122013 Infiniti JX
Is the inspection result normal?
YES- GO TO 4.
NO- Repair or replace harness or connector.

4. CHECK CLIMATE CONTROLLED SEAT RELAY POWER SUPPLY CIRCUIT

1.Turn ignition switch ON.
2.Check voltage between climate controlled seat relay harness connector and ground.





Is the inspection result normal?
YES- GO TO 5.
NO- Repair or replace harness or connector.

5. CHECK CLIMATE CONTROLLED SEAT RELAY GROUND CIRCUIT

1.Turn ignition switch OFF.
2.Check continuity between climate controlled seat relay harness connector and ground.





Is the inspection result normal?
YES- GO TO 6.
NO- Repair or replace harness.

6. CHECK CLIMATE CONTROLLED SEAT RELAY

Check climate controlled seat relay.
Refer to "CLIMATE CONTROLLED SEAT CONTROL UNIT : Component Inspection" .
Is the inspection result normal?
YES- GO TO 8.
NO- Replace climate controlled seat relay.

7. CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT (DRIVER SIDE) GROUND CIRCUIT

1.Turn ignition switch OFF.
2.Check continuity between climate control unit (driver side) harness connector and ground.





Is the inspection result normal?
YES- Check intermittent incident. Refer to "Intermittent Incident" Intermittent Incident.
NO- Repair or replace harness or connector.

PASSENGER SIDE


1. CHECK FUSE

Check if any of the following fuses are blown.





Revision: March 20122013 Infiniti JX
Is the fuse blown?
YES- Replace the blown fuse after repairing the affected circuit.
NO- GO TO 2.

2. CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT (PASSENGER SIDE) POWER SUPPLY

1.Turn ignition switch OFF.
2.Disconnect climate controlled seat control unit (passenger side) connector.
3.Turn ignition switch ON.
4.Check voltage between climate controlled seat control unit (passenger side) harness connector and ground.





Is the inspection result normal?
YES- GO TO 7.
NO- GO TO 3.

3. CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT (PASSENGER SIDE) POWER SUPPLY CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect climate controlled seat relay.
3.Check continuity between climate controlled seat control unit (passenger side) harness connector and climate controlled seat relay harness connector.





4.Check continuity between climate controlled seat control unit (passenger side) harness connector and ground.





Is the inspection result normal?
YES- GO TO 4.
NO- Repair or replace harness or connector.

4. CHECK CLIMATE CONTROLLED SEAT RELAY POWER SUPPLY CIRCUIT

1.Turn ignition switch ON.
2.Check voltage between climate controlled seat relay harness connector and ground.





Is the inspection result normal?
YES- GO TO 5.
Revision: March 20122013 Infiniti JX
NO- Repair or replace harness or connector.

5. CHECK CLIMATE CONTROLLED SEAT RELAY GROUND CIRCUIT

1.Turn ignition switch OFF.
2.Check continuity between climate controlled seat relay harness connector and ground.





Is the inspection result normal?
YES- GO TO 6.
NO- Repair or replace harness.

6. CHECK CLIMATE CONTROLLED SEAT RELAY

Check climate controlled seat relay.
Refer to "CLIMATE CONTROLLED SEAT CONTROL UNIT : Component Inspection" .
Is the inspection result normal?
YES- GO TO 8.
NO- Replace climate controlled seat relay.

7. CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT (PASSENGER SIDE) GROUND CIRCUIT

1.Turn ignition switch OFF.
2.Check continuity between harness connector and ground.





Is the inspection result normal?
YES- Check intermittent incident. Refer to "Intermittent Incident" Intermittent Incident.
NO- Repair harness or connector.


CLIMATE CONTROLLED SEAT CONTROL UNIT : Component Inspection


1. CHECK CLIMATE CONTROLLED SEAT RELAY

1.Turn ignition switch OFF.
2.Remove climate controlled seat relay.





3.Check the continuity between climate controlled seat relay terminals under the following conditions.





Is the inspection result normal?
YES- Inspection End.
NO- Replace climate controlled seat relay.
Revision: March 20122013 Infiniti JX