Operation CHARM: Car repair manuals for everyone.

Climate Control Seat System








SEAT: CLIMATE CONTROL SEAT SYSTEM: TERMINALS OF ECU

TERMINALS OF ECU

1. CHECK AIR CONDITIONING AMPLIFIER (A/C ECU)





(a) Disconnect the K52 ECU connector.
(b) Measure the resistance and voltage of the wire harness side connector.
Standard resistance:






Standard voltage:





If the result is not as specified, there may be a malfunction on the wire harness side.
(c) Reconnect the K52 ECU connector.
(d) Measure the voltage of the connector.
Standard voltage:





If the result is not as specified, the ECU may have a malfunction.






(e) Using an oscilloscope, check the waveform.