DTC Troubleshooting
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, disable the VSA by pressing the VSA OFF switch, 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. Monitor the OBD STATUS for P0706 in the DTCs MENU with the HDS.
Does the HDS indicate FAILED?
YES - Go to step 6.
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.
6. Turn the ignition switch to LOCK (0).
7. Inspect the transmission range switch.
Is the switch OK?
YES - Go to step 8.
NO - Replace the transmission range switch, then go to step 27.
8. Adjust the shift cable.
9. Turn the ignition switch to ON (II).
10. Clear the DTC with the HDS.
11. Start the engine, disable the VSA by pressing the VSA OFF switch, 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.
12. Monitor the OBD STATUS for P0706 in the DTCs MENU with the HDS.
Does the HDS indicate FAILED?
YES - Go to step 13.
NO - If the HDS indicates PASSED, troubleshooting is complete. If the HDS indicates NOT COMPLETED, go to step 11.
13. Shift to D, and check the Forward Switch (ATP FWD) and A/T D Switch in the Data List with the HDS.
Are Forward Switch (ATP FWD) and A/T D Switch ON?
YES - Go to step 14.
NO - Go to step 19.
14. Shift to D3, and check the Forward Switch (ATP FWD) and A/T D3 Switch with the HDS in the Data List.
Are Forward Switch (ATP FWD) and A/T D3 Switch ON?
YES - Go to step 15.
NO - Go to step 19.
15. Shift to 2, and check the Forward Switch (ATP FWD) and A/T 2-1 Switch in the Data List with the HDS.
Are Forward Switch (ATP FWD) and A/T 2-1 Switch ON?
YES - Go to step 16.
NO - Go to step 19.
16. Clear the DTC with the HDS.
17. Start the engine, disable the VSA by pressing the VSA OFF switch, 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.
18. Monitor the OBD STATUS for P0706 in the DTCs MENU with the HDS.
Does the HDS indicate FAILED?
YES - Go to step 19.
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 17.
19. Turn the ignition switch to LOCK (0).
20. Disconnect the transmission range switch connector.
21. Check for continuity between transmission range switch connector terminal No. 10 and body ground.
Is there continuity?
YES - Go to step 22.
NO - Repair open in the wire between transmission range switch connector terminal No. 10 and ground (G101), or repair poor ground (G101), then go to step 27.
22. Turn the ignition switch to ON (II).
23. Measure the voltage between transmission range switch connector terminals No. 5 and No. 10.
Is there battery voltage?
YES - Go to step 24.
NO - Repair open in the wire between the transmission range switch and PCM connector terminal B29, then go to step 27.
24. Measure the voltage between transmission range switch connector terminals No. 8 and No. 10.
Is there battery voltage?
YES - Go to step 25.
NO - Repair open in the wire between the transmission range switch and PCM connector terminal B22, then go to step 27.
25. Measure the voltage between transmission range switch connector terminals No. 3 and No. 10.
Is there battery voltage?
YES - Go to step 26.
NO - Repair open in the wire between the transmission range switch and PCM connector terminal B16, then go to step 27.
26. Measure the voltage between transmission range switch connector terminals No. 9 and No. 10.
Is there battery voltage?
YES - Go to step 33.
NO - Repair open in the wire between the transmission range switch and PCM connector terminal B17, then go to step 27.
27. Reconnect all connectors.
28. Turn the ignition switch to ON (II).
29. Clear the DTC with the HDS.
30. Start the engine, disable the VSA by pressing the VSA OFF switch, 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.
31. Check for Temporary DTCs or 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 32.
32. 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 Temporary DTCs or DTCs were indicated in step 31, 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 30.
33. Reconnect all connectors.
34. Update the PCM. if it does not have the latest software, or substitute a known-good PCM.
35. Start the engine, disable the VSA by pressing the VSA OFF switch, 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.
36. Check for Temporary DTCs or 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 35. If the PCM was substituted, go to step 1.
NO - Go to step 37.
37. 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 Temporary DTCs or DTCs were indicated in step 36, 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 35. If the PCM was substituted, go to step 1. If the HDS indicates NOT COMPLETED, go to step 35.