WINDSHIELD DEICER SYSTEM TERMINALS OF ECU


  1. CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY

    A01WPA4E02

    1. Disconnect the E36 air conditioning amplifier assembly connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      E36-5 (IG+) - E36-1 (GND) G - BR Power source (IG) Engine switch on (IG) 11 to 14 V
      Engine switch off Below 1 V
      E36-6 (+B1) - E36-1 (GND) LG - BR Power source Always 11 to 14 V
      E36-7 (+B2) - E36-1 (GND) LG - BR Power source Always 11 to 14 V
      E36-1 (GND) - Body ground BR - Body ground Ground Always Below 1 Ω

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

    3. Reconnect the E36 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
      E36-9 (FDEF) - E36-1 (GND) GR - BR Deicer relay Engine switch on (IG) and deicer switch off 11 to 14 V
      Engine switch on (IG) and deicer switch on Below 1 V

  2. MULTI-MEDIA MODULE RECEIVER ASSEMBLY

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  3. MULTI-DISPLAY ASSEMBLY

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