Paddle Shifter + (Upshift Switch) Circuit Troubleshooting

Paddle Shifter + (Upshift Switch) Circuit Troubleshooting

SRS components are located in this area. Review the SRS component locations Locations and the precautions and procedures Service and Repair before doing repair or service.

1. Remove the steering wheel Steering Wheel Removal.

2. Check for continuity between cable reel subharness 20P connector terminals No. 16 and No. 10 when pressing the paddle shifter + (upshift switch) and when the paddle shifter + (upshift switch) is released.





Is there continuity when pressing the paddle shifter + (upshift switch) and no continuity when the paddle shifter + (upshift switch) is released?

YES -

Go to step 5.

NO -

Go to step 3.

3. Disconnect the paddle shifter connector.

4. Check for continuity between paddle shifter connector terminals No. 3 and No. 5 when pressing the paddle shifter + (upshift switch) and when the paddle shifter + (upshift switch) is released.





Is there continuity when pressing the paddle shifter + (upshift switch) and no continuity when the paddle shifter + (upshift switch) is released?

YES -

Replace the cable reel subharness or repair poor connection at terminal T801.�

NO -

Replace the paddle shifter Paddle Shifter Replacement.�

5. Remove the cable reel Service and Repair.

6. Check for continuity between dashboard wire harness 20P connector terminal No. 3 and body ground.





Is there continuity?

YES -

Go to step 7.

NO -

Repair an open in the wire between dashboard wire harness 20P connector terminal No. 3 and body ground (G501), or repair poor body ground (G501).�

7. Check for continuity between dashboard wire harness 20P connector terminal No. 16 and body ground.





Is there continuity?

YES -

Repair a short to body ground in the wire between dashboard wire harness 20P connector terminal No. 16 and PCM connector terminal A36.�

NO -

Go to step 8.

8. Turn the ignition switch to ON (II), and shift to S.

9. Measure the voltage between dashboard wire harness 20P connector terminals No. 3 and No. 16.





Is there battery voltage?

YES -

Replace the cable reel Service and Repair.�

NO -

Go to step 10.

10. Turn the ignition switch to LOCK (0).

11. Jump the SCS line with the HDS.

12. Disconnect PCM connector A (49P).

13. Connect dashboard wire harness 20P connector terminal No. 16 to body ground with a jumper wire.






14. Check for continuity between PCM connector terminal A36 and body ground.





Is there continuity?

YES -

Check for loose or poor connections at PCM connector terminal A36. If the connection is OK, substitute a known-good PCM and recheck.�

NO -

Repair an open in the wire between PCM connector terminal A36 and the dashboard wire harness 20P connector.�