P0706
DTC P0706: Open in Transmission Range Switch CircuitNOTE:
^ Before you troubleshoot, record all freeze data and any on-board snapshot with the HDS, and review General Troubleshooting Information.
^ This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission.
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Raise the front of the vehicle, make sure it is securely supported, and allow the front wheels to rotate freely. Or raise the vehicle on a lift.
4. Start the engine, run the vehicle with the shift lever in D until the vehicle speed reaches 25 mph (40 km/h), then slow down and stop the wheels.
5. Turn the ignition switch to LOCK (0). Repeat the test-drive in step 4, then go to step 6.
6. Monitor the OBD STATUS for P0706 in the DTCs MENU with the HDS.
Does the HDS indicate FAILED?
YES - Go to step 7.
NO - If the HDS indicates PASSED, intermittent failure, the system is OK at this time. Check for poor connections or loose terminals between the transmission range switch and the PCM. If the HDS indicates NOT COMPLETED, go to step 4.
7. Turn the ignition switch to LOCK (0).
8. Inspect the transmission range switch.
Is the switch OK?
YES - Go to step 9.
NO - Replace the transmission range switch, then go to step 30.
9. Adjust the shift cable.
10. Turn the ignition switch to ON (II).
11. Clear the DTC with the HDS.
12. Start the engine, run the vehicle with the shift lever in D until the vehicle speed reaches 25 mph (40 km/h), then slow down and stop the wheels.
13. Turn the ignition switch to LOCK (0). Repeat the test-drive in step 12, then go to step 14.
14. Monitor the OBD STATUS for P0706 in the DTCs MENU with the HDS.
Does the HDS indicate FAILED?
YES - Go to step 15.
NO - If the HDS indicates PASSED, intermittent failure, the system is OK at this time. Check for poor connections or loose terminals between the transmission range switch and the PCM. If the HDS indicates NOT COMPLETED, go to step 12.
15. Shift to D, and check the ATP FWD and ATP D in the DATA LIST with the HDS.
Are ATP FWD and ATP D ON?
YES - Go to step 16.
NO - Go to step 22.
16. Shift to D3, and check the ATP FWD and ATP D3 in the DATA LIST with the HDS.
Are ATP FWD and ATP D3 ON?
YES - Go to step 17.
NO - Go to step 22.
17. Shift to 2, and check the ATP FWD and ATP 2-1 in the DATA LIST with the HDS.
Are ATP FWD and ATP 2-1 ON?
YES - Go to step 18.
NO - Go to step 22.
18. Clear the DTC with the HDS.
19. Start the engine, run the vehicle with the shift lever in D until the vehicle speed reaches 25 mph (40 km/h), then slow down and stop the wheels.
20. Turn the ignition switch to LOCK (0). Repeat the test-drive in step 19, then go to step 21.
21. Monitor the OBD STATUS for P0706 in the DTCs MENU with the HDS.
Does the HDS indicate FAILED?
YES - Go to step 22.
NO - If the HDS indicates PASSED, intermittent failure, the system is OK at this time. Check for poor connections or loose terminals between the transmission range switch and the PCM. If the HDS indicates NOT COMPLETED, go to step 19.
22. Turn the ignition switch to LOCK (0).
23. Disconnect the transmission range switch connector.
24. Check for continuity between transmission range switch connector terminal No. 10 and body ground.
Is there continuity?
YES - Go to step 25.
NO - Repair open in the wire between the transmission range switch and ground (G 101), or repair poor ground (G 101), then go to step 30.
25. Turn the ignition switch to ON (II).
26. Measure the voltage between transmission range switch connector terminals No. 5 and No. 10.
Is there battery voltage?
YES - Go to step 27.
NO - Repair open in the wire between the transmission range switch and PCM connector terminal B28, then go to step 30.
27. Measure the voltage between transmission range switch connector terminals No. 8 and No. 10.
Is there battery voltage?
YES - Go to step 28.
NO - Repair open in the wire between the transmission range switch and PCM connector terminal B21, then go to step 30.
28. Measure the voltage between transmission range switch connector terminals No. 3 and No. 10.
Is there battery voltage?
YES - Go to step 29.
NO - Repair open in the wire between the transmission range switch and PCM connector terminal B15, then go to step 30.
29. Measure the voltage between transmission range switch connector terminals No. 9 and No. 10.
Is there battery voltage?
YES - Go to step 37.
NO - Repair open in the wire between the transmission range switch and PCM connector terminal B16, then go to step 30.
30. Reconnect all connectors.
31. Turn the ignition switch to ON (II).
32. Clear the DTC with the HDS.
33. Start the engine, run the vehicle with the shift lever in D until the vehicle speed reaches 30 mph (48 km/h), then slow down and stop the wheels.
34. Turn the ignition switch to LOCK (0). Repeat the test-drive in step 33, then go to step 35.
35. Check for DTCs with the HDS.
Is DTC P0706 indicated?
YES - Check for poor connections or loose terminals between the transmission range switch and the PCM, then go to step 1.
NO - Go to step 36.
36. Monitor the OBD STATUS for P0706 in the DTCs MENU with the HDS.
Does the HDS indicate PASSED?
YES - Troubleshooting is complete. If any other DTCs were indicated in step 35, go to the indicated DTC's troubleshooting.
NO - If the HDS indicates FAILED, check for poor connections or loose terminals between the transmission range switch and the PCM, then go to step 1. If the HDS indicates NOT COMPLETED, go to step 33.
37. Update the PCM if it does not have the latest software, or substitute a known good PCM.
38. Start the engine, run the vehicle with the shift lever in D until the vehicle speed reaches 30 mph (48 km/h), then slow down and stop the wheels.
39. Turn the ignition switch to LOCK (0). Repeat the test-drive in step 38, then go to step 40.
40. Check for DTCs with the HDS.
Is DTC P0706 indicated?
YES - Check for poor connections or loose terminals between the transmission range switch and the PCM. If the PCM was updated, substitute a known-good PCM, then go to step 38. If the PCM was substituted, go to step 1.
NO - Go to step 41.
41. Monitor the OBD STATUS for P0706 in the DTCs MENU with the HDS.
Does the HDS indicate PASSED?
YES - If the PCM was updated, troubleshooting is complete. If the PCM was substituted, replace the original PCM. If any other DTCs were indicated in step 40, go to the indicated DTC's troubleshooting.
NO - If the HDS indicates FAILED, check for poor connections or loose terminals between the transmission range switch and the PCM. If the PCM was updated, substitute a known-good PCM, then go to step 38. If the PCM was substituted, go to step 1. If the HDS indicates NOT COMPLETED, go to step 38.