HEATED WINDSHIELD DEFROSTER SYSTEM TERMINALS OF ECU


  1. CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY

    B001HVBE07

    1. Disconnect the G25 air conditioning amplifier assembly connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      G25-21 (B) - G25-14 (GND) V - W-B Battery power source Always 11 to 14 V
      G25-1 (IG+) - G25-14 (GND) L - W-B IG power supply Engine switch on (IG) 11 to 14 V
      G25-1 (IG+) - G25-14 (GND) L - W-B IG power supply Engine switch off Below 1 V
      G25-14 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

    3. Reconnect the G25 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
      G25-40 (FDEF) - Body ground G - Body ground Deicer relay operation signal Engine switch on (IG), front wiper deicer switch off 11 to 14 V
      G25-40 (FDEF) - Body ground G - Body ground Deicer relay operation signal Engine switch on (IG), front wiper deicer switch on Below 1 V
      G24-11 (FDFI) - Body ground B - Body ground Front wiper deicer switch indicator signal output Engine switch on (IG), front wiper deicer switch off 11 to 14 V
      G24-11 (FDFI) - Body ground B - Body ground Front wiper deicer switch indicator signal output Engine switch on (IG), front wiper deicer switch on Below 1 V
      G24-5 (SW 1) - Body ground R - Body ground Front wiper deicer switch signal input Engine switch on (IG), front wiper deicer switch off 11 to 14 V
      G24-5 (SW 1) - Body ground R - Body ground Front wiper deicer switch signal input Engine switch on (IG), front wiper deicer switch on Below 1 V