Code No. P1240: Trustful Check Ignition Angle <Vehicles with active stability control (ASC)>


FUNCTION



  • Checks for an abnormal ignition timing retard angle demand signal from the active stability control (ASC).

TROUBLE JUDGMENT


Check Condition
  • Ignition switch is "ON" position.
Judgment Criterion
  • Ignition timing retard angle demand signal is abnormal.

PROBABLE CAUSES



  • Failed active stability control system
  • Failed engine-ECU

DIAGNOSIS PROCEDURE

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

  • Reconfirmation of diagnosis code.

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

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

  • Confirm the diagnosis code is outputted from the ASC-ECU.

Q. Is diagnosis code set?
Perform troubleshooting of the active stability control (Refer to GROUP 35C - Troubleshooting - Diagnosis Code Chart ).
Replace the engine-ECU.