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Inspection Procedure

  1. INSPECT FUSE (D MPX-B 2, P-ACC) 
    1. Disconnect the D MPX-B 2 fuse from the main body ECU.
    2. Disconnect the P-ACC fuse from the passenger side junction block.
    3. Measure the resistance of the fuses.

      Standard resistance 

      STANDARD RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      D MPX-B 2 fuse Always Below 1 Ω
      P-ACC fuse Always Below 1 Ω

      NG: REPLACE FUSE 

      OK: Go to Next Step 

  2. CHECK HARNESS AND CONNECTOR (RECEIVER - BATTERY AND BODY GROUND) 
    1. Disconnect the L51 receiver connector.
    2. Measure the resistance according to the value (s) in the table below.

      Standard resistance 

      STANDARD RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      L51-20 (GND) - Body ground Always Below 1 Ω
    3. Measure the voltage according to the value (s) in the table below.

      Standard voltage 

      STANDARD VOLTAGE SPECIFICATION

      Tester Connection Switch Condition Specified Condition
      L51-1 (B) - Body ground Always 11 to 14 V
      L51-11 (ACC) - Body ground Engine switch on (ACC) 11 to 14 V
      Fig 1: Identifying L51 Receiver Connector
      G06189314Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

      OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See  PROBLEM SYMPTOMS TABLE   ) 

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