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Home >> Infiniti >> 2015 >> Q50 Base, RWD >> Repair and Diagnosis >> Accessories & Equipment >> Warning Systems >> Driver Assistance System (Diagnostic Trouble Codes (DTCS) Symptom Tests & Component R&R) (Exc Hybrid) >> DTC/Circuit Diagnosis >> DTC C1B52: Blind Spot Warning/Blind Spot Intervention Indicator Open Circuit >> Side Radar >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK BLIND SPOT WARNING/BLIND SPOT INTERVENTION INDICATOR CIRCUIT FOR OPEN 1

    1. Turn ignition switch OFF.
    2. Disconnect side radar harness connector and Blind Spot Warning/Blind Spot Intervention indicator harness connector.
    3. Check continuity between side radar harness connector and Blind Spot Warning/Blind Spot Intervention indicator harness connector.
    Side radar  
    Blind Spot Warning/Blind Spot Intervention indicator
    Continuity
    Connector Terminal Connector Terminal
    B92 (LH) 6 D15 (LH) 1 Existed
    B93 (RH) D27 (RH)

    Is the inspection result normal?

    YES 

    GO TO STEP 2  .

    NO 

    Repair the harnesses or connectors.

  2. CHECK BLIND SPOT WARNING/BLIND SPOT INTERVENTION INDICATOR CIRCUIT FOR OPEN 2

    Check continuity between Blind Spot Warning/Blind Spot Intervention indicator harness connector and ground.

    Blind Spot Warning/Blind Spot Intervention indicator Ground Continuity
    Connector Terminal
    D15 (LH) 4 Existed
    D27 (RH)

    Is the inspection result normal?

    YES 

    GO TO STEP 3  .

    NO 

    Repair the harnesses or connectors.

  3. CHECK SIDE RADAR VOLTAGE OUTPUT

    1. Connect side radar harness connector.
    2. Check voltage between Blind Spot Warning/Blind Spot Intervention indicator harness connector and ground.
      Blind Spot Warning/Blind Spot Intervention indicator Ground Condition Voltage
      (Approx.)
      Connector Terminal
      D15 (LH) 1 Ignition switch
      OFF → ON
      (Approx. 2 sec.)
      6 V
      D27 (RH)

    Is the inspection result normal?

    YES 

    Replace Blind Spot Warning/Blind Spot Intervention indicator.

    NO 

    Replace side radar. Refer to REMOVAL AND INSTALLATION .