WINDSHIELD DEICER SYSTEM TERMINALS OF ECU


  1. CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY

    B002ECZN41

    1. Disconnect the K64 air conditioning amplifier assembly connector.

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

      Tech Tips

      Measure the values on the wire harness side with the connector disconnected.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      K64-5 (IG+) - K64-1 (GND) B - W-B Power source (IG) Engine switch on (IG) 11 to 14 V
      K64-5 (IG+) - K64-1 (GND) B - W-B Power source (IG) Engine switch off Below 1 V
      K64-6 (+B1) - K64-1 (GND) W - W-B Battery power supply Always 11 to 14 V
      K64-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

    3. Reconnect the K64 air conditioning amplifier assembly connector.

    4. Measure the voltage according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      K64-24 (FDEF) - K64-1 (GND) R - W-B Wiper Deicer signal Engine switch on (IG), Windshield deicer switch off 11 to 14 V
      K64-24 (FDEF) - K64-1 (GND) R - W-B Wiper Deicer signal Engine switch on (IG), Windshield deicer switch on Below 2.2 V