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Home >> Toyota >> 2020 >> Avalon Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 85 (Blind Spot Monitor System - Diagnostic Codes & Symptom Tests (Hybrid)) >> BLIND SPOT MONITOR SYSTEM (for HV Model) >> DTC C1AB4: Open in Outer Mirror Indicator (Master) [04/2018 -] >> Procedure

DTC C1AB4: Open in Outer Mirror Indicator (Master) [04/2018 -]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK DTC 
    1. Turn the power switch off.
    2. Turn the power switch on (IG).
    3. Recheck for DTCs and check if the same DTC is output again.

      Body Electrical > Blind Spot Monitor Master > Trouble Codes 

      OK

      No DTCs are output.

      Result

      Result Proceed to
      OK A
      NG (w/o Seat Memory) B
      NG (w/ Seat Memory) C

    Result: 

    A 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [04/2018 -] 

    Result: 

    C 

    See step  5

    Result: 

    B 

    See step  2

  2. CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR ASSEMBLY RH - BLIND SPOT MONITOR SENSOR RH AND BODY GROUND) 
    1. Disconnect the P5 blind spot monitor sensor RH connector.
    2. Disconnect the I12 outer rear view mirror assembly RH connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      P5-4 (OMIR) - I12-7 (BSR+) Always Below 1 Ω
      I12-6 (-) - Body ground Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  3

  3. INSPECT OUTER REAR VIEW MIRROR ASSEMBLY RH 
    1. Disconnect the IND1 outer mirror RH connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      I12-7 (BSR+) - IND1-2 (+) Always Below 1 Ω
      I12-6 (-) - IND1-1 (-) Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH. Refer to  REMOVAL [04/2018 -] 

    Result: 

    OK 

    See step  4

  4. INSPECT OUTER MIRROR RH 
    1. Remove the outer mirror RH.

      Refer to REMOVAL [04/2018 -]

    2. Inspect the outer rear view mirror indicator RH on the outer mirror RH.

      Refer to INSPECTION [04/2018 -]

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE BLIND SPOT MONITOR SENSOR RH. Refer to  REMOVAL [04/2018 -] 

    Result: 

    NG 

    REPLACE OUTER MIRROR RH. Refer to  REMOVAL [04/2018 -] 

  5. CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR ASSEMBLY RH - BLIND SPOT MONITOR SENSOR RH) 
    1. Disconnect the P5 blind spot monitor sensor RH connector.
    2. Disconnect the I12*1 or I13*2 outer rear view mirror assembly RH connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      P5-4 (OMIR) - I12-7 (BSR+)*1 Always Below 1 Ω
      P5-4 (OMIR) - I13-7 (BSR+)*2 Always Below 1 Ω
      1. *1: w/o Panoramic View Monitor System
      2. *2: w/ Panoramic View Monitor System

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  6

  6. CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR ASSEMBLY RH - OUTER MIRROR CONTROL ECU ASSEMBLY RH AND BODY GROUND) 
    1. Disconnect the I12*1 or I13*2 outer rear view mirror assembly RH connector.
    2. Disconnect the I5 and I6 outer mirror control ECU assembly RH connectors.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      I12-6 (-) - I6-12 (RTN)*1 Always Below 1 Ω
      I13-6 (-) - I6-12 (RTN)*2 Always Below 1 Ω
      I5-7 (GND) - Body ground Always Below 1 Ω
      1. *1: w/o Panoramic View Monitor System
      2. *2: w/ Panoramic View Monitor System

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  7

  7. INSPECT OUTER MIRROR CONTROL ECU ASSEMBLY RH 
    1. Disconnect the I5 and I6 outer mirror control ECU assembly RH connectors.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      I5-7 (GND) - I6-12 (RTN) Always Below 1 Ω
      GTY861739Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Outer Mirror Control ECU Assembly RH)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY RH. Refer to  REMOVAL [04/2018 -] 

    Result: 

    OK 

    See step  8

  8. INSPECT OUTER REAR VIEW MIRROR ASSEMBLY RH 
    1. Disconnect the IND1 outer mirror RH connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      I12-7 (BSR+) - IND1-2 (+)*1 Always Below 1 Ω
      I12-6 (-) - IND1-1 (-)*1 Always Below 1 Ω
      I13-7 (BSR+) - IND1-2 (+)*2 Always Below 1 Ω
      I13-6 (-) - IND1-1 (-)*2 Always Below 1 Ω
      1. *1: w/o Panoramic View Monitor System
      2. *2: w/ Panoramic View Monitor System

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH. Refer to  REMOVAL [04/2018 -] 

    Result: 

    OK 

    See step  9

  9. INSPECT OUTER MIRROR RH 
    1. Remove the outer mirror RH.

      Refer to REMOVAL [04/2018 -]

    2. Inspect the outer rear view mirror indicator RH on the outer mirror RH.

      Refer to INSPECTION [04/2018 -]

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE BLIND SPOT MONITOR SENSOR RH. Refer to  REMOVAL [04/2018 -] 

    Result: 

    NG 

    REPLACE OUTER MIRROR RH. Refer to  REMOVAL [04/2018 -] 

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