Diagnosis Procedure

If DTC "C1A27" is displayed with DTC "U1000", "U0415" or "U0121", first diagnose the DTC "U1000""U0415" or "U0121".

Is applicable DTC detected?

YES 

Perform diagnosis of applicable.

• U1000: Refer to DTC LOGIC 
• U0415: Refer to DTC LOGIC 
• U0121: Refer to DTC LOGIC 

NO 

GO TO STEP 2  .

Check power supply circuit of ABS actuator and electric unit (control unit). Refer to DIAGNOSIS PROCEDURE .

Is the inspection result normal?

YES 

Perform self-diagnosis of ABS actuator and electric unit (control unit). Refer to DTC INDEX .

NO 

Repair the harnesses or connectors.