Inspection Procedure 6

Inspection Procedure 6: Cannot be Changed with the Paddle Shift. [Vehicles with paddle shift]


















SYMPTOMS

The transaxle does not upshift or downshift when the paddle shift is operated.

PROBABLE CAUSES

- Malfunction of paddle shift switch
- Damaged wiring harness and connectors
- Malfunction of TCM

DIAGNOSTIC PROCEDURE

STEP 1. Scan tool data list

- Item 54: Paddle switch (up)
- Item 55: Paddle switch (down)

(Refer to Data List Reference Table Data List Reference Table.)

Q. Is the check result normal?

YES Intermittent malfunction
NO Go to Step 2.
STEP 2. Check the following connector:

- C-131 TCM connector
- C-315 paddle shift switch connector
- C-127 intermediate connector
- C-01 Grounding connector
- C-108 Joint connector (4)

Check the contact status of the terminals.

Q. Is the check result normal?

YES Go to Step 3.
NO Repair the damaged connector.
STEP 3. Paddle shift switch single unit check

Refer to Paddle Shift Switch Check.

Q. Is the check result normal?

YES Go to Step 4.
NO Replace the paddle shift assembly.
STEP 4. Check for open circuit in the wiring harness between the TCM connector and the paddle shift switch connector

- Between C-131 TCM connector (terminal No.22) and C-315 paddle shift switch connector (terminal No.3)
- Between C-131 TCM connector (terminal No.21) and C-315 paddle shift switch connector (terminal No.1)
- Between C-315 paddle shift switch connector (terminal No.2) and the body ground

Q. Is the check result normal?

YES Go to Step 5.
NO Repair the wiring harness.
STEP 5. Retest the system.

Q. Is the check result normal?

YES Intermittent malfunction
NO Replace TCM.