Code No. P0815 Malfunction of Paddle Shift UP Switch












DIAGNOSTIC FUNCTION



JUDGEMENT CRITERIA



PROBABLE CAUSES



  • Malfunction of paddle shift switch
  • Damaged wiring harness and connectors
  • Malfunction of CVT-ECU

DIAGNOSTIC PROCEDURE

STEP 1. M.U.T.-III data list
Item 54: Paddle shift SW (UP)
OK: The service data changes in response to the paddle shift operation.

Q. Is the check result normal?
Intermittent malfunction
Go to Step 2.

STEP 2. Check the following connector:

  • C-35 CVT-ECU connector
  • C-210 paddle shift switch connector
  • C-127 intermediate connector
Check the terminals for a contact status problem and internal short circuit.

Q. Is the check result normal?
Go to Step 3.
Repair the damaged connector.

STEP 3. Paddle shift switch single unit check
Refer to .

Q. Is the check result normal?
Go to Step 4.
Replace the paddle shift switch.

STEP 4. Check for short to earth in the wiring harness between the CVT-ECU connector and the paddle shift switch connector
Between C-35 CVT-ECU connector (terminal No. 22) and C-210 paddle shift switch connector (terminal No. 1)

Q. Is the check result normal?
Go to Step 5.
Repair the wiring harness.

STEP 5. Symptom recheck after erasing diagnosis code

Q. Is the check result normal?
Intermittent malfunction
Replace CVT-ECU.