A/T
DTC P0815: Paddle Shift Switch (Up) SystemDESCRIPTIONS OF MONITOR METHODS
^ With the ignition switch ON, the paddle shift switch (up) status continues for 60 seconds.
TROUBLESHOOTING HINTS (THE MOST LIKELY CAUSES FOR THIS CODE TO BE SET ARE:)
^ Malfunction of the Paddle shift switch (up) system circuit
^ Damaged harness or connector
^ Malfunction of the TCM
^ Malfunction of the paddle shift switch
DIAGNOSIS
STEP 1. Check the TCM terminal voltage.
[C-38 TCM connector (vehicle side, connected)]
Measure the voltage between C-38 No. 9 and body ground.
^ Ignition switch: ON
^ Paddle (ON) operated: 1V or less
^ Other than above: battery positive voltage
Q:Is the check result normal?
YES: Go to Step 2.
NO: Go to Step 3.
STEP 2. Check the TCM connector, vehicle-side wiring harness connector pin terminal, and the connection status.
Q:Is the check result normal?
YES: Go to Step 6.
NO: Repair or replace the failure section.
STEP 3. Check between the TCM connector and the paddle shift switch (up).
Check for continuity between C-38 TCM connector terminal No. 9 and C-208 paddle shift switch (up).
^ Between C-38 terminal No. 9 and C-208 terminal No. 1: Continuity exists.
When the continuity check result is OK, check that the wiring harness is not shorted to the body and other wiring harness.
Q:Is the check result normal?
YES: Go to Step 4.
NO: Repair or replace the failure section.
STEP 4. Check the paddle shift switch (up).
Q:Is the check result normal?
YES: Go to Step 5.
NO: Repair or replace the failure section.
STEP 5. Check the TCM connector, vehicle-side wiring harness connector pin terminal, and the connection status.
Q:Is the check result normal?
YES: Replace the TCM.
NO: Repair or replace the failure section.
STEP 6. Erase the DTC code, and drive the vehicle for a while.
Check that the normal code is displayed.
Q:Is the check result normal?
YES: The procedure is complete.
NO: Return to START.