Paddle Shifter - (Downshift Switch) Circuit Troubleshooting

Paddle Shifter - (Downshift Switch) Circuit Troubleshooting

SRS components are located in this area. Review the SRS component locations Locations and the precautions and procedures Service and Repair in the SRS 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. 8 and No. 17 when pressing and releasing the paddle shifter - (downshift switch).





Is there continuity while pressing the paddle shifter - (downshift switch) and no continuity when the paddle shifter - (downshift switch) is released?

YES -

Go to step 5.

NO -

Go to step 3.

3. Disconnect the paddle shifter - (downshift switch) connector.

4. Check for continuity between the paddle shifter - (downshift switch) connector terminals when pressing and releasing the paddle shifter - (downshift switch).





Is there continuity while pressing the paddle shifter - (downshift switch) and no continuity when the paddle shifter - (downshift switch) is released?

YES -

Replace the cable reel subharness.�

NO -

Replace the paddle shifter - (downshift switch) Paddle Shifter + (Upshift Switch) or Paddle Shifter - (Downshift Switch) Replacement.�

5. Remove the cable reel Service and Repair.

6. Check for continuity between cable reel 20P connector terminal No. 5 and body ground.





Is there continuity?

YES -

Go to step 7.

NO -

Repair open in the wire between cable reel20P connector terminal No. 5 and ground (G502), or repair poor ground (G502).�

7. Check for continuity between cable reel 20P connector terminal No. 17 and body ground.





Is there continuity?

YES -

Repair short to body ground in the wire between cable reel 20P connector terminal No. 17 and PCM connector terminal B40.�

NO -

Go to step 8.

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

9. Measure the voltage between cable reel 20P connector terminals No. 5 and No. 17.





Is there about 5 V?

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 B (44P).

13. Check for continuity between PCM connector terminal B40 and cable reel 20P connector terminal No. 17.






Is there continuity?

YES -

Check for loose or poor connections at PCM connector terminal B40. If the connection is OK, substitute a known-good PCM Initial Inspection and Diagnostic Overview and recheck.�

NO -

Repair open in the wire between PCM connector terminal B40 and the cable reel 20P connector.�