Code No. P0815 Malfunction of paddle shift UP switch <Vehicles with paddle shift>


DIAGNOSTIC FUNCTION


A/T-ECU detects that the paddle shift UP switch is stuck to ON.

JUDGEMENT CRITERIA


When the paddle shift UP switch being ON consecutively for 60 seconds is detected.

PROBABLE CAUSES



DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III data list
Item 21: 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. Paddle shift switch single unit check
Refer to or .

Q. Is the check result normal?
Go to Step 3.
Replace the paddle shift switch.

STEP 3. Check for short to earth in PDUP line between the A/T-ECU connector and the paddle shift switch connector

Q. Is the check result normal?
Go to Step 4.
Repair the connector(s) or wiring harness.

STEP 4. Symptom recheck after erasing diagnosis code

Q. Is the check result normal?
Intermittent malfunction
Replace A/T-ECU.