Window Defogger System

WINDSHIELD / WINDOW GLASS: WINDOW DEFOGGER SYSTEM: TERMINALS OF ECU

1. CHECK ECM (2GR-FSE)





(a) Measure the resistance and voltage according to the value(s) in the table below.





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

2. CHECK ECM (1UR-FSE)





(a) Measure the voltage and resistance according to the value(s) in the table below.





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

3. CHECK A/C AMPLIFIER ASSEMBLY (A/C ECU)





(a) Disconnect the K52 amplifier connector.

(b) Measure the voltage and resistance according to the value(s) in the table below.





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

4. CHECK MULTI-DISPLAY





(a) Disconnect the K46 multi-display connector.

(b) Measure the voltage and resistance according to the value(s) in the table below.





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

5. CHECK IGNITION CONTROL ECU ASSEMBLY





(a) Disconnect the K73 ECU connector.

(b) Measure the voltage and resistance according to the value(s) in the table below.





(b) 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 according to the value(s) in the table below.





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