D3 Switch Circuit Troubleshooting

D3 Switch Circuit Troubleshooting

K24Z6 Engine

1. Remove the dashboard center lower cover Dashboard Center Lower Cover Removal/Installation.

2. Disconnect the D3 switch/park pin switch/A/T gear position indicator panel light connector.

3. Turn the ignition switch to ON (II).

4. Measure the voltage between D3 switch/park pin switch/A/T gear position indicator panel light connector terminals No. 5 and No. 6.





Is there battery voltage?

YES -

Go to step 11.

NO -

Go to step 5.

5. Measure the voltage between D3 switch/park pin switch/A/T gear position indicator panel light connector terminal No. 5 and body ground.





Is there battery voltage?

YES -

Repair open in the wire between D3 switch/park pin switch/A/T gear position indicator panel light connector terminal No. 6 and body ground (G503), or repair poor body ground (G503).�

NO -

Go to step 6.

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

7. Jump the SCS line with the HDS.

8. Disconnect PCM connector A (49P).

9. Check for continuity between PCM connector terminal A43 and D3 switch/park pin switch/A/T gear position indicator panel light connector terminal No. 5.





Is there continuity?

YES -

Go to step 10.

NO -

Repair open in the wire between PCM connector terminal A43 and the D3 switch/park pin switch/A/T gear position indicator panel light connector.�

10. Check for continuity between D3 switch/park pin switch/A/T gear position indicator panel light connector terminal No. 5 and body ground.





Is there continuity?

YES -

Repair short to body ground in the wire between PCM connector terminal A43 and the D3 switch/park pin switch/A/T gear position indicator panel light connector.�

NO -

Check for loose or poor connection at PCM connector terminal A43. If the connection is OK, substitute a known-good PCM and recheck. If the symptom goes away with a known-good PCM, replace the original PCM Service and Repair.�

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

12. Check for continuity between D3 switch/park pin switch/A/T gear position indicator panel light connector terminals No. 5 and No. 6 while pressing the D3 button and when the button is released.





Is there continuity while pressing the D3 button, and no continuity when the button is released?

YES -

Check for loose or poor connection at PCM connector terminal A43. If the connection is OK, substitute a known-good PCM and recheck. If the symptom goes away with a known-good PCM, replace the original PCM Service and Repair.�

NO -

Test the D3 switch D3 Switch Test.�