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Home >> Toyota >> 2019 >> Highlander LE Plus, FWD >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> Audio / Video System - Diagnostic Codes & Symptom Tests - (Except Hybrid) >> Audio And Visual System >> Circuit Tests >> Reverse Signal Circuit [12/2013 - 11/2016] >> Procedure

Reverse Signal Circuit [12/2013 - 11/2016]: Procedure

  1. CHECK BACK-UP LIGHT 
    1. Move the shift lever to R and check if the back-up lights come on.

      OK

      The back-up lights come on.

      Result

      Proceed to
      OK
      NG

    Result:  2

    NG 

    GO TO LIGHTING SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2013 - ] 

    Result:  1

    OK 

    See step  2

  2. CHECK HARNESS AND CONNECTOR (REVERSE SIGNAL) 
    1. Disconnect the F71 radio and display receiver assembly connector.
    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      F71-2 (REV) - Body ground Ignition switch ON
      Shift lever in R
      11 to 14 V
      F71-2 (REV) - Body ground Ignition switch ON
      Shift lever in any position other than R
      Below 1 V

      Result

      Proceed to
      OK
      NG

    Result:  1

    OK 

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [12/2013 - 11/2015]  Refer to  PROBLEM SYMPTOMS TABLE [11/2015 - 11/2016] 

    Result:  2

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR