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Home >> Nissan-Datsun >> 2016 >> Maxima S >> Repair and Diagnosis >> External Pages >> Different car >> Section 16 (Driver Assistance System (ADAS Control Unit)) >> ADAS Control Unit >> DTC/Circuit Diagnosis >> DTC C1A03: Vehicle Speed Sensor >> Diagnosis Procedure
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Diagnosis Procedure

WARNING: This page is about a different car, the 2015 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.

  1. CHECK DTC PRIORITY

    If DTC "C1A03" is displayed with DTC "U1000", first diagnose the DTC "U1000".

    Is applicable DTC detected?

    YES 

    Perform diagnosis of applicable.

    NO 

    GO TO STEP 2  .

  2. CHECK DATA MONITOR

    1. Start the engine.
    2. Drive the vehicle at 19 mph (30 km/h) or more.
    3. Check that the value of "VHCL SPD SE" in "Data Monitor" of "ICC/ADAS" is almost the same as the actual vehicle speed.
    CAUTION:

    Be careful of the vehicle speed.

    Is the inspection result normal?

    YES 

    Replace the ADAS control unit. Refer to REMOVAL AND INSTALLATION .

    NO 

    GO TO STEP 3. 

  3. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF DIAGNOSTIC RESULT

    Check if any DTC is detected in "Self Diagnostic Result" mode of "ABS".

    Is any DTC detected?

    YES 

    Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to DTC INDEX .

    NO 

    Replace the ADAS control unit. Refer to REMOVAL AND INSTALLATION .