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. Turn the ignition switch ON (II).
2. Clear the DTC with the HDS.
3. 4WD: Raise the vehicle on a lift, make sure it is securely supported, and allow all four wheels to rotate freely.
2WD: 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, disable the VSA by pressing the VSA OFF switch, run the vehicle in the D position until the vehicle speed reaches 30 mph (48 km/h), then slow down and stop the wheels.
5. Turn the ignition switch OFF, and repeat the test-drive in step 4.
6. Monitor the OBD STATUS for P0706 in the DTCs MENU with the HDS.
Does the screen indicate FAILED?
YES - Go to step 7.
NO - If the screen 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 screen indicates NOT COMPLETED, go to step 4.
7. Turn the ignition switch OFF.
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 ON (II).
11. Clear the DTC with the HDS.
12. Start the engine, disable the VSA by pressing the VSA OFF switch, run the vehicle in the D position until the vehicle speed reaches 30 mph (48 km/h), then slow down and stop the wheels.
13. Turn the ignition switch OFF, and repeat the test-drive in step 12.
14. Monitor the OBD STATUS for P0706 in the DTCs MENU with the HDS.
Does the screen indicate FAILED?
YES - Go to step 15.
NO - If the screen 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 screen indicates NOT COMPLETED, go to step 12.
15. Shift to the D position 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 the D3 position, 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 the 2 position, and check the ATP FWD and ATP 2 in the DATA LIST with the HDS.
Are ATP FWD and ATP 2 ON?
YES - Go to step 18.
NO - Go to step 22.
18. Clear the DTC with the HDS.
19. Start the engine, disable the VSA by pressing the VSA OFF switch, run the vehicle in the D position until the vehicle speed reaches 30 mph (48 km/h), then slow down and stop the wheels.
20. Turn the ignition switch OFF, and repeat the test-drive in step 19.
21. Monitor the OBD STATUS for P0706 in the DTCs MENU with the HDS.
Does the screen indicate FAILED?
YES - Go to step 22.
NO - If the screen 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 screen indicates NOT COMPLETED, go to step 19.
22. Turn the ignition switch OFF.
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 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 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 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 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 29.
NO - Repair open in the wire between the transmission range switch and PCM connector terminal C32, then go to step 30.
29. Measure the voltage between transmission range switch connector terminals No. 1 and No. 5.
Is there voltage?
YES - Go to step 37.
NO - Repair open in the wire between the transmission range switch and PCM connector terminal C34, then go to step 30.
30. Reconnect all connectors.
31. Turn the ignition switch ON (II).
32. Clear the DTC with the HDS.
33. Start the engine, run the vehicle in the D position until the vehicle speed reaches 30 mph (48 km/h), then slow down and stop the wheels.
34. Turn the ignition switch OFF, and repeat the test-drive in step 33.
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 screen 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 screen indicates FAILED, check for poor connections or loose terminals between the transmission range switch and the PCM, then go to step 1. If the screen 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 in the D position until the vehicle speed reaches 30 mph (48 km/h), then slow down and stop the wheels.
39. Turn the ignition switch OFF, and repeat the test-drive in step 38.
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 screen 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 screen 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 screen indicates NOT COMPLETED, go to step 38.