DTC C1431 At: Trouble symptom
- ABS does not operate.
- VDC does not operate.
- Hill start assist does not operate.
- Hill descent control does not operate. (Model with X mode)
- EyeSight does not operate. (Model with EyeSight)
- CHECK TCM.
- Start the engine.
- Read the DTC of the TCM. Ref. to TRANSMISSION (DIAGNOSTICS)>Read Diagnostic Trouble Code (DTC) .
Are any DTCs displayed?
- Yes : Perform the diagnosis according to DTC. Ref. to TRANSMISSION (DIAGNOSTICS)>List of Diagnostic Trouble Code (DTC) .
- No : Go to 2.
- CHECK VDCCM&H/U.
- Turn the ignition switch to OFF.
- After turning the ignition switch to ON for approx. 10 seconds, turn it to OFF.
- Turn the ignition switch to ON.
- Clear the memory. Ref. to BRAKE CONTROL (DIAGNOSTICS)>Clear memory .
- Perform the Inspection Mode. Ref. to BRAKE CONTROL (DIAGNOSTICS)>Inspection Mode .
- Read the DTC. Ref. to BRAKE CONTROL (DIAGNOSTICS)>Read Diagnostic Trouble Code (DTC) .
Is the same DTC displayed?
- Yes : Replace the VDCCM only. Ref. to VEHICLE DYNAMICS CONTROL (VDC)>VDC Control Module and Hydraulic Control Unit (VDCCM&H/U)>REPLACEMENT .
- No : Go to 3.
- CHECK DETECTION OF OTHER DTCS FOR VDC.
Ref. to BRAKE CONTROL (DIAGNOSTICS)>Read Diagnostic Trouble Code (DTC) .
Is any other DTC displayed?
- Yes : Perform the diagnosis according to DTC. Ref. to BRAKE CONTROL (DIAGNOSTICS)>List of Diagnostic Trouble Code (DTC) .
- No : Currently, it is normal. There may have been a temporary poor contact in the harness and connector or a temporary noise interference.