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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 40 (Cruise Control System (DTC/Circuit Diagnosis)) >> DTC / Circuit Diagnosis >> DTC C1A16: Radar Blocked Or Stained >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: After distance sensor (ICC sensor) alignment is performed, the vehicle must be driven at a speed of 4.5 MPH (7.2 km/h) or more for a minimum of 2 minutes before DTC C1A16 can be cleared.
  1. VISUAL CHECK 1 

    Check for contamination and foreign matter on the distance sensor (ICC sensor) area of the front bumper.

    Does contamination or foreign material exist?

    YES

    Clean the contamination and foreign material on the distance sensor (ICC sensor) area of the front bumper.

    NO

    GO TO 2

  2. VISUAL CHECK 2 

    Check distance sensor (ICC sensor) for contamination and foreign materials.

    Does contamination or foreign material exist?

    YES

    Clean the contamination and foreign material from the distance sensor (ICC sensor).

    NO

    GO TO 3

  3. VISUAL CHECK 3 

    Check distance sensor (ICC sensor) and distance sensor (ICC sensor) bracket for damage or looseness.

    Does damage or looseness exist?

    YES

    1. Repair or replace effected components. Refer to Removal and Installation .
    2. Perform distance sensor (ICC sensor) alignment. Refer to Description .
    3. Perform action test. Refer to Description .

    NO

    GO TO 4

  4. INTERVIEW 
    1. Ask if there is any trace of contamination or foreign materials adhering to the distance sensor (ICC sensor) area.
    2. Ask if the distance sensor (ICC sensor) area was frosted during driving or if vehicle was driven in snow.
    3. Ask if distance sensor (ICC sensor) area was temporarily fogged. (Windshield glass may also tend to fog, etc.)

    Are any of the above conditions seen?

    YES

    Explain to the customer about the difference between the contamination detection function and an actual malfunction. Inform them "this is not a malfunction".

    NO

    1. Perform distance sensor (ICC sensor) alignment. Refer to Description .
    2. Perform action test. Refer to Description .
    3. GO TO 5.
  5. CHECK DISTANCE SENSOR (ICC SENSOR) SELF DIAGNOSTIC RESULTS 

    SYMBOL CONSULT

    Check if "C1A16" is detected as the current malfunction in "Self Diagnostic Result" mode of "LASER/RADAR".

    Is "C1A16" detected?

    YES

    Replace distance sensor (ICC sensor). Refer to Removal and Installation .

    NO

    Inspection End.

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