Diagnosis Procedure
WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
Regarding Wiring Diagram information, refer to WIRING DIAGRAM .
- CHECK SEAT CUSHION THERMAL ELECTRIC DEVICE SIGNAL
- Turn ignition switch ON.
- Check voltage between seat cushion thermal electric device harness connector and ground.
(+) (-) Condition Voltage (V)
(Approx.)Seat cushion thermal electric device Connector Terminal Driver side B206 1 Ground Climate controlled seat switch HEAT or COOL 0 - 12* Other than above 0 2 HEAT or COOL 0 - 12* Other than above 0 Passenger side B308 1 Climate controlled seat switch HEAT or COOL 0 - 12* Other than above 0 2 HEAT or COOL 0 - 12* Other than above 0 *:It changes between 12 and 0 V
NOTE:Wait 1 minute or more after the activation start, and then start the measurement.
Is the inspection result normal?
YES
Replace seat cushion thermal electric device. Refer to SEAT CUSHION THERMAL ELECTRIC DEVICE .
NO
GO TO STEP 2 .
- CHECK SEAT CUSHION THERMAL ELECTRIC DEVICE CIRCUIT
- Turn ignition switch OFF.
- Disconnect climate controlled seat control unit connector and seat cushion thermal electric device connector.
- Check continuity between climate controlled seat control unit harness connector and seat cushion thermal electric device harness connector.
Climate controlled seat control unit Seat cushion thermal electric device Continuity Connector Terminal Connector Terminal Driver side B205 25 B206 1 Yes 30 2 Passenger side B304 25 B308 1 30 2 - Check continuity between climate controlled seat control unit harness connector and ground.
Climate controlled seat control unit Ground Continuity Connector Terminal Driver side B205 25 No 30 Passenger side B304 25 30
Is the inspection result normal?
YES
Replace climate controlled seat control unit. Refer to EXPLODED VIEW .
NO
Repair or replace harness.