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Home › Toyota › 2013 › Prius Four › Repair and Diagnosis › External Pages › Different variant/trim › Section 133 (Window Defogger (Inspection) (Plug-In)) › Window Defogger System › Terminals Of Ecu › Terminals Of Ecu

Terminals Of Ecu

WARNING: This page is about a different variant/trim than selected.
  1. CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY 
    1. Disconnect the L113 air conditioning amplifier assembly connector.
      Fig 1: Air Conditioning Amplifier Assembly (L113) Connector Terminal Identification
      GTY325374Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    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
      L113-1 (IG+) - L113-14 (GND) B - W-B Power source (IG) Power switch on (IG) 11 to 14 V
      L113-1 (IG+) - L113-14 (GND) B - W-B Power source (IG) Power switch off Below 1 V
      L113-21 (B) - L113-14 (GND) Y - W-B Auxiliary battery power supply Power switch off 11 to 14 V
      L113-14 (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 L113 air conditioning amplifier assembly connector.
    4. Measure the voltage and check for pulses according to the value(s) in the table below.
      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      L113-20 (RDFG) - L113-14 (GND) Y - W-B Rear window defogger signal Power switch on (IG), rear window defogger switch off 11 to 14 V
      L113-20 (RDFG) - L113-14 (GND) Y - W-B Rear window defogger signal Power switch on (IG), rear window defogger switch on Below 2 V
      L113-37 (LIN1) - L113-14 (GND) V - W-B LIN communication line Power switch on (IG) Pulse generation

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

  2. CHECK AIR CONDITIONING CONTROL ASSEMBLY 
    1. Disconnect the L195 air conditioning control assembly connector.
      Fig 2: Air Conditioning Control Assembly (L195) Connector Terminal Identification
      GTY329621Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    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
      L195-5 (IG+) - L195-8 (GND) B - W-B Power source (IG) Power switch on (IG) 11 to 14 V
      L195-5 (IG+) - L195-8 (GND) B - W-B Power source (IG) Power switch off Below 1 V
      L195-8 (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 L195 air conditioning control assembly connector.
    4. Check for pulses according to the value(s) in the table below.
      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      L195-2 (TX+) - L195-8 (GND) V - W-B LIN communication line Power switch on (IG) Pulse generation

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

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