CRUISE CONTROL SYSTEM(for 1ND-TV with Driving support ECU), Diagnostic DTC:C1A03 and C1A06

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

DESCRIPTION

If an internal malfunction (cruise cancel circuit) in the driving support ECU assembly occurs, DTC C1A03 is stored.

If an internal malfunction (stop light switch assembly input circuit) in the driving support ECU assembly occurs, DTC C1A06 is stored.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1A03

Driving Support ECU Internal Logical Error

When the ignition switch is ON, the driving support ECU assembly detects an internal malfunction (cruise cancel circuit malfunction) for approximately 1 second.

Driving support ECU assembly

C1A06

Stop Light Switch Input Circuit

When the ignition switch is ON, the driving support ECU assembly detects an internal malfunction (stop light switch assembly input circuit malfunction) for approximately 1 second.

Driving support ECU assembly

PROCEDURE

  1. CHECK FOR DTCs

    1. Clear the DTCs.

      Click here

      Powertrain > Cruise Control > Clear DTCs

    2. Make sure that the DTC detection conditions are met.

      Tip:

      If the detection conditions are not met, the system cannot detect the malfunction.

    3. Check for DTCs.

      Click here

      Powertrain > Cruise Control > Trouble Codes

      Note:

      When replacing the driving support ECU assembly, always replace it with a new one. If a driving support ECU assembly which was installed to another vehicle is used, the information stored in the driving support ECU assembly will not match the information from the vehicle. As a result, a DTC may be stored.

    Result

    Result

    Proceed to

    DTC C1A03 and C1A06 are not output

    A

    DTC C1A03 or C1A06 is output

    B
    A

    USE SIMULATION METHOD TO CHECK

    Click hereClick hereClick here

    B

    REPLACE DRIVING SUPPORT ECU ASSEMBLY

    Click here