Automatic Transmission
DTC P0706: Open in Transmission Range Switch CircuitNOTE:
^ Before you troubleshoot, record all freeze data and any on-board snapshot, 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. Clear the DTC with the HDS.
2. Raise the vehicle on a lift, make sure it is supported securely, and allow all four wheels to rotate freely.
3. Start the engine, disable the VSA by pressing the VSA OFF button, run the vehicle in D until the vehicle speed reaches 30 mph (48 km/h), then slow down and stop the wheels.
4. Turn the ignition switch to LOCK (0), and repeat the test-drive in step 3.
5. Monitor the OBD STATUS for P0706 in the DTCs MENU with the HDS.
Does the screen indicate PASSED?
YES - Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the transmission range switch and the PCM.
NO - If the screen indicates FAILED, go to step 6. If the screen indicates NOT COMPLETED, return to step 3 and recheck.
6. Turn the ignition switch to LOCK (0).
7. Inspect the transmission range switch.
Is the switch OK?
YES - Go to step 8.
NO - Go to step 29.
8. Adjust the shift cable.
9. Clear the DTC with the HDS.
10. Turn the ignition switch to LOCK (0).
11. Start the engine, disable the VSA by pressing the VSA OFF button, run the vehicle in D hold the vehicle speed reaches 30 mph (48 km/h), then slow down and stop the wheels.
12. Turn the ignition switch to LOCK (0), and repeat the test-drive in step 11.
13. Monitor the OBD STATUS for P0706 in the DTCs MENU with the HDS.
Does the screen indicate PASSED?
YES - Intermittent failure, the system is OK at this time. Check for an intermittent short in the wire between the transmission range switch and the PCM.
NO - If the screen indicates FAILED, go to step 14. If the screen indicates NOT COMPLETED, go to step 11.
14. Clear the DTC with the HDS.
15. Move the shift lever into D, and verify the ATP FWD and ATP D inputs with the HDS in the A/T data list.
Are ATP FWD and ATP DON?
YES - Go to step 16.
NO - Go to step 22.
16. Shift to 2, and verify the ATP FWD and ATP 2 inputs with the HDS in the A/T data list.
Are ATP FWD and ATP 2 ON?
YES - Go to step 17.
NO - Go to step 22.
17. Clear the DTC with the HDS.
18. Turn the ignition switch to LOCK (0).
19. Start the engine, disable the VSA by pressing the VSA OFF button, run the vehicle in D until the vehicle speed reaches 30 mph (48 km/h), then slow down and stop the wheels.
20. Turn the ignition switch to LOCK (0), and repeat the test-drive in step 21.
21. Monitor the OBD STATUS for P0706 in the DTCs MENU with the HDS.
Does the screen indicate PASSED?
YES - Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the transmission range switch and the PCM.
NO - If the screen indicates FAILED, go to step 22. If the screen indicates NOT COMPLETED, return to step 19 and recheck.
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. 5 and body ground.
Is there continuity?
YES - Go to step 25.
NO - Repair an open in the wire between the transmission range switch and ground (G101, G102), or repair poor ground (G101, G102), 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. 9.
Is there voltage?
YES - Go to step 27.
NO - Repair an open in the wire between the transmission range switch and PCM connector terminal C17, then go to step 30.
27. Measure the voltage between transmission range switch connector terminals No. 2 and No. 5.
Is there voltage?
YES - Go to step 28.
NO - Repair an open in the wire between the transmission range switch and PCM connector terminal C32, then go to step 30.
28. Measure the voltage between transmission range switch connector terminals No. 5 and No. 7.
Is there voltage?
YES - Go to step 38.
NO - Repair an open in the wire between the transmission range switch and PCM connector terminal C33, then go to step 30.
29. Replace the transmission range switch.
30. Reconnect all connectors.
31. Turn the ignition switch to ON (II).
32. Clear the DTC with the HDS.
33. Raise the vehicle on a lift, make sure it is securely supported, and allow all four wheels to rotate freely.
34. Start the engine, disable the VSA by pressing the VSA OFF button, run the vehicle in D hold the vehicle speed reaches 30 mph (48 km/h), then slow down and stop the wheels.
35. Turn the ignition switch to LOCK (0), and repeat the test-drive in step 34.
36. Check for Temporary DTCs or DTCs with the HDS.
Is DTC P0706 indicated?
YES - Check for poor connections or loose terminals at the transmission range switch and the PCM, then go to step 1.
NO - If Temporary DTC or DTC P0706 is not indicated, or if any other Temporary DTCs are indicated, go to step 37.
37. Monitor the OBD STATUS for P0706 in the DTCs MENU with the HDS.
Does the screen indicate PASSED?
YES - Troubleshooting is complete. If any other Temporary DTC or DTCs were indicated on step 36, go to the indicated DTCs troubleshooting.
NO - If the screen indicates FAILED, check for poor connections or loose terminals at the transmission range switch and the PCM, then go to step 1. If the screen indicates NOT COMPLETED, go to step 33.
38. Update the PCM if it does not have the latest software, or substitute a known-good PCM.
39. Raise the vehicle on a lift, make sure it is supported securely, and allow all four wheels to rotate freely.
40. Start the engine, disable the VSA by pressing the VSA OFF button, run the vehicle in D hold the vehicle speed reaches 30 mph (48 km/h), then slow down and stop the wheels.
41. Turn the ignition switch to LOCK (0), and repeat the test-drive in step 40.
42. Check for Temporary DTCs or DTCs with the HDS.
Is DTC P0706 indicated?
YES - Check for poor connections or loose terminals at the transmission range switch and the PCM. If the PCM was updated, substitute a known-good PCM, then go to step 39. If the PCM was substituted, go to step 1.
NO - If Temporary DTC or DTC P0706 is not indicated, or if any other Temporary DTCs or DTCs are indicated, go to step 43.
43. Monitor the OBD STATUS for P0706 in the DTCs MENU with the HDS.
Does the screen indicate PASSED?
YES - If the PCM was updated, troubleshooting is complete. If the PCM was substituted, replace the original PCM. If any other Temporary DTCs or DTCs were indicated on step 42, go to the indicated DTCs troubleshooting.
NO - If the screen indicates FAILED, check for poor connections or loose terminals at the transmission range switch and the PCM. If the PCM was updated, substitute a known-good PCM, then go to step 39. If the PCM was substituted, go to step 1. If the screen indicates NOT COMPLETED, go to step 39.