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 SEATBACK THERMAL ELECTRIC DEVICE INPUT SIGNAL
- Turn ignition switch ON.
- Check voltage between seatback thermal electric device harness connector and ground.
(+) (-) Condition Voltage (V)
(Approx.)Seatback thermal electric device Connector Terminal Driver side B212 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 B309 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 seatback thermal electric device. Refer to SEATBACK THERMAL ELECTRIC DEVICE .
NO
GO TO STEP 2 .
- CHECK SEATBACK THERMAL ELECTRIC DEVICE CIRCUIT
- Turn ignition switch OFF.
- Disconnect climate controlled seat control unit connector and seatback thermal electric device connector.
- Check continuity between climate controlled seat control unit harness connector and seatback thermal electric device harness connector.
Climate controlled seat control unit Seatback thermal electric device Continuity Connector Terminal Connector Terminal Driver side B205 26 B212 1 Yes 28 2 Passenger side B304 26 B309 1 28 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 26 No 28 Passenger side B304 26 28
Is the inspection result normal?
YES
Replace climate controlled seat control unit. Refer to EXPLODED VIEW .
NO
Repair or replace harness.