WINDSHIELD DEICER SYSTEM > TERMINALS OF ECU

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CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY


  1. Disconnect the H85 air conditioning amplifier assembly connector.


    E206269E01

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

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


    Tester Connection
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    H85-1 (IG+) - H85-14 (GND)
    		B - W-B
    		Power source (IG)
    		Power switch on (IG)
    		11 to 14 V
    H85-1 (IG+) - H85-14 (GND)
    		B - W-B
    		Power source (IG)
    		Power switch off
    		Below 1 V
    H85-21 (B) - H85-14 (GND)
    		Y - W-B
    		Power source (Back-up)
    		Power switch off
    		11 to 14 V
    H85-14 (GND) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    If the result is not as specified, there may be a malfunction in the wire harness.

  3. Reconnect the H85 air conditioning amplifier assembly connector.

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

    Tester Connection
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    H85-36 (SW6) - H85-14 (GND)*2
    		R - W-B
    		Front wiper deicer switch (outer mirror heater switch assembly) signal
    		Power switch on (IG), front wiper deicer switch (outer mirror heater switch assembly) off
    		Below 1 V
    H85-36 (SW6) - H85-14 (GND)*2
    		R - W-B
    		Front wiper deicer switch (outer mirror heater switch assembly) signal
    		Power switch on (IG), front wiper deicer switch (outer mirror heater switch assembly) on
    		11 to 14 V
    H85-39 (HRLY) - H85-14 (GND)
    		R - W-B
    		Windshield deicer signal
    1. Power switch on (IG), windshield deicer switch off*1
    2. Power switch on (IG), front wiper deicer switch (outer mirror heater switch assembly) off*2
    		11 to 14 V
    H85-39 (HRLY) - H85-14 (GND)
    		R - W-B
    		Windshield deicer signal
    1. Power switch on (IG), windshield deicer switch on*1
    2. Power switch on (IG), front wiper deicer switch (outer mirror heater switch assembly) on*2
    		Below 2 V
    H86-22 (SWL2) - H85-14 (GND)*2
    		B - W-B
    		Front wiper deicer switch (outer mirror heater switch assembly) indicator signal
    		Power switch on (IG), front wiper deicer switch (outer mirror heater switch assembly) off
    		11 to 14 V
    H86-22 (SWL2) - H85-14 (GND)*2
    		B - W-B
    		Front wiper deicer switch (outer mirror heater switch assembly) indicator signal
    		Power switch on (IG), front wiper deicer switch (outer mirror heater switch assembly) on
    		Below 1 V

    1. *1: w/ Navigation System
    2. *2: w/o Navigation System
    3. If the result is not as specified, the air conditioning amplifier assembly may have a malfunction.


CHECK NAVIGATION COMPUTER SUB-ASSEMBLY (w/ Navigation System (for HDD)) (Click here)

CHECK DISPLAY AND NAVIGATION MODULE DISPLAY (w/ Navigation System (for DVD)) (Click here)

CHECK MULTI-DISPLAY (w/ Navigation System)
(Click here for Navigation System (for HDD), Click here for Navigation System (for DVD))