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DYNAMIC RADAR CRUISE CONTROL SYSTEM, Diagnostic DTC:C1A03, C1A06

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DTC Code DTC Name
C1A03 Driving Support ECU Internal Logical Error
C1A06 Stop Light Switch Input Circuit
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DESCRIPTION

This DTC indicates an internal malfunction of the driving support ECU assembly.

DTC No. DTC Detection Condition Trouble Area
C1A03 Cruise control input signal is abnormal Driving support ECU assembly
C1A06 Stop light switch input signal is abnormal
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PROCEDURE


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    CHECK FOR DTCs (DTC C1A03 OR C1A06)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Clear the DTCs (Click here).

    4. Perform the following to make sure that the DTC detection conditions are met.

      Tip:

      If the detection conditions are not met, the malfunction cannot be detected.


      1. Drive the vehicle at a speed for which cruise control operation is possible.

      2. Turn the cruise control system on using the cruise control switch (ON-OFF button).

      3. Push the cruise control switch to -/SET to begin control of vehicle speed using the cruise control system.

    5. Enter the following menus: Powertrain / Radar Cruise / Trouble Codes.

    6. Check for DTCs.

      Result
      Result Proceed to
      DTC is not output A
      DTC C1A03 or C1A06 is output B

    7. Turn the power switch off.