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DTC P0816: Malfunction of Paddle Shift DOWN Switch <Vehicles with paddle shift>
 
 
 
 
DIAGNOSTIC FUNCTION
TCM detects that the paddle shift DOWN switch is stuck to ON.
 
 
JUDGMENT CRITERIA
When the paddle shift DOWN switch being ON consecutively for 60 seconds is detected.
 
 
PROBABLE CAUSES
  • Malfunction of paddle shift switch
  • Damaged wiring harness and connectors
  • Malfunction of TCM
 
 
DIAGNOSIS
STEP 1. M.U.T.-III data list
Item 68: Paddle switch (Down)
OK: The service data changes in response to the paddle shift operation.
Is the check result normal?
Intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunctions ).
Go to Step 2.
 
STEP 2. Paddle shift switch single unit check
Refer to .
Is the check result normal?
Go to Step 3.
Replace the paddle shift switch. (Refer to )
 
STEP 3. Check for short to ground in PDDW line between the TCM connector and the paddle shift switch connector
Is the check result normal?
Go to Step 4.
Repair the connector(s) or wiring harness.
 
STEP 4. Symptom recheck after erasing diagnostic trouble code
Is the diagnostic trouble code set?
Replace TCM.
Intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunctions ).