Code No. P2764: Malfunction of the Lockup Solenoid Valve (short to earth)


DIAGNOSTIC FUNCTION


If a predetermined current does not flow into the lock-up solenoid valve (short to earth), the CVT-ECU will determine the system is defective.

JUDGEMENT CRITERIA



PROBABLE CAUSES



DIAGNOSIS PROCEDURE

STEP 1. Check the following connector

  • CVT assembly connector
  • CVT-ECU connector
Check the terminals for a contact status problem and internal short circuit.

Q. Is the check result normal?
Go to Step 2.
Repair the defective connector(s).

STEP 2. Check for short to earth in LULS line between the CVT assembly connector and the CVT-ECU connector

Q. Is the check result normal?
Go to Step 3.
Repair the wiring harness.

STEP 3. Lockup solenoid valve check
Refer to .

Q. Is the check result normal?
Go to Step 4.
Replace the CVT assembly.

STEP 4. Symptom recheck after erasing diagnosis code

Q. Is the diagnosis code stored?
Replace the CVT-ECU.
Intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunctions .).