Windshield Deicer System Terminals Of Ecu

  1. CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY

Windshield Deicer System -- Terminals Of Ecu



CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY

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  1. Disconnect the G25 air conditioning amplifier 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
    		Ignition power supply
    		Ignition switch ON
    		11 to 14 V
    G25-1 (IG+) - G25-14 (GND)
    		L - W-B
    		Ignition power supply
    		Ignition switch off
    		Below 1 V
    G25-14 (GND) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    1. If the result is not as specified, there may be a malfunction on the wire harness side.

  3. Reconnect the G25 air conditioning amplifier connector.

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

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    G25-40 (FDEF) - Body ground
    		G - Body ground
    		Windshield deicer relay operation signal
    		Ignition switch ON, windshield deicer switch off
    		11 to 14 V
    G25-40 (FDEF) - Body ground
    		G - Body ground
    		Windshield deicer relay operation signal
    		Ignition switch ON, windshield deicer switch on
    		Below 1 V
    G24-11 (FDF1) - Body ground
    		B - Body ground
    		Windshield deicer switch indicator signal output
    		Ignition switch ON, windshield deicer switch off
    		11 to 14 V
    G24-11 (FDF1) - Body ground
    		B - Body ground
    		Windshield deicer switch indicator signal output
    		Ignition switch ON, windshield deicer switch on
    		Below 1 V
    G24-5 (SW 1) - Body ground
    		R - Body ground
    		Windshield deicer switch signal input
    		Ignition switch ON, windshield deicer switch off
    		11 to 14 V
    G24-5 (SW 1) - Body ground
    		R - Body ground
    		Windshield deicer switch signal input
    		Ignition switch ON, windshield deicer switch on
    		Below 1 V
    1. If the result is not as specified, the air conditioning amplifier assembly may have a malfunction.