POWER MIRROR CONTROL SYSTEM TERMINALS OF ECU


  1. CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY


    1. Disconnect the L14 air conditioning amplifier assembly connector.

      A0043CYE88

    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.

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      L14-1 (IG+) - L14-14 (GND) B - W-B Power source (IG) Power switch on (IG) 11 to 14 V
      L14-1 (IG+) - L14-14 (GND) B - W-B Power source (IG) Power switch off Below 1 V
      L14-21 (B) - L14-14 (GND) Y - W-B Auxiliary battery power supply Power switch off 11 to 14 V
      L14-14 (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 L14 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
      L14-20 (RDFG) - L14-14 (GND) Y - W-B Rear window defogger signal Power switch on (IG), rear window defogger switch off 11 to 14 V
      L14-20 (RDFG) - L14-14 (GND) Y - W-B Rear window defogger signal Power switch on (IG), rear window defogger switch on Below 1 V

      If the result is not as specified, the air conditioning amplifier assembly may have a malfunction.

  2. CHECK AIR CONDITIONING CONTROL PANEL ASSEMBLY


    1. Disconnect the L17 air conditioning control panel assembly connector.

      A0042JLE07

    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.

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      L17-5 (IG+) - L17-8 (GND) B - W-B Power source (IG) Power switch on (IG) 11 to 14 V
      L17-5 (IG+) - L17-8 (GND) B - W-B Power source (IG) Power switch off Below 1 Ω
      L17-8 (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 L17 air conditioning control panel assembly connector.

    4. Check for pulses according to the value(s) in the table below.

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      L17-2 (TX+) - L17-8 (GND) V - W-B Rear window defogger signal Power switch on (IG) Pulse generation

      If the result is not as specified, the air conditioning control panel assembly may have a malfunction.