Window Defogger System

WINDSHIELD / WINDOWGLASS: WINDOW DEFOGGER SYSTEM: TERMINALS OF ECU

1. CHECK ECM





(a) Measure the voltage and resistance of each terminal of the connectors.





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

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





(a) Disconnect the K52 amplifier connector.

(b) Measure the voltage and resistance of the wire harness side connector.





* If the result is not as specified, there may be a malfunction on the wire harness side.

3. CHECK MULTI-DISPLAY





(a) Disconnect the K46 multi-display connector.

(b) Measure the voltage and resistance of the wire harness side connector.





* If the result is not as specified, there may be a malfunction on the wire harness side.

4. CHECK POWER SOURCE CONTROL ECU





(a) Disconnect the K73 ECU connector.

(b) Measure the voltage and resistance of the wire harness side connector.





* If the result is not as specified, there may be a malfunction on the wire harness side.

(c) Reconnect the K73 ECU connector.

(d) Measure the voltage of the connector.





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