Climate Control Seat System

SEAT: CLIMATE CONTROL SEAT SYSTEM: 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.





Waveform 1 (reference)