Code No. P0816 Malfunction of paddle shift DOWN switch


PADDLE SHIFT SWITCH SYSTEM CIRCUIT



DIAGNOSTIC FUNCTION



JUDGMENT 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 55: Paddle shift SW (DOWN)
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-136 CVT-ECU connector
  • C-208 paddle shift switch 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-136 CVT-ECU connector (terminal No. 21) and C-208 paddle shift switch connector (terminal No. 3)

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

STEP 5. Retest the system.

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