Code No. P1231: Trustful Check ASC <Vehicle with ASC>


FUNCTION



TROUBLE JUDGMENT


Check Condition
Judgment Criterion

PROBABLE CAUSES



DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III diagnosis code

Q. Is diagnosis code related with CAN communication displayed?
Inspection chart for diagnosis code (Refer to ).
Go to Step 2 .

STEP 2. M.U.T.-III other system diagnosis code

  • Confirm whether the diagnosis codes are output from ABS/ASC-ECU.

Q. Is the diagnosis code output?
Perform the troubleshooting of ASC (Refer to Group 35C - Troubleshooting - Check Chart for Diagnosis Codes ).
Replace the engine-ECU then perform the variant coding (Refer to GROUP 00 - Precautions Before Service - How to Perform Variant Coding ).