DTC Troubleshooting
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. 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 hoist.
4. Start the engine, disable the TCS/VSA by pressing the TCS/VSA OFF switch, run the vehicle in the D position until the vehicle speed reaches 35 mph (56 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 screen indicate FAILED?
YES - Go to step 6.
NO - Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals in the wires between the transmission range switch and the PCM. If the screen indicates NOT COMPLETED, go to step 4.
6. Turn the ignition switch OFF.
7. Inspect the transmission range switch.
Is the switch OK?
YES - Go to step 8.
NO - Replace the transmission range switch, then go to stop 27.
8. Adjust the shift cable.
9. Turn the ignition switch ON (II).
10. Clear the DTC with the HDS.
11. Start the engine, disable the TCS/VSA by pressing the TCS/VSA OFF switch, run the vehicle in the D position until the vehicle speed reaches 35 mph (56 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 screen indicate FAILED?
YES - Go to step 13.
NO - Troubleshooting is complete. If the screen indicates NOT COMPLETED, go to step 11.
13. Shift to the D position, and verify ATP FWD and ATP D in the DATA LIST with the HDS.
Are ATP FWD and ATP D ON?
YES - Go to step 14.
NO - Go to step 19.
14. Shift to the D3 position, and verify the ATP FWD and ATP D3 in the DATA LIST with the HDS.
Are ATP FWD and ATP D3 ON?
YES - Go to step 1 S.
NO - Go to step 19.
15. Shift to the 2 position, and verify the ATP FWD and ATP 2 in the DATA LIST with the HDS.
Are ATP FWD and ATP 2 ON?
YES - Go to step 16.
NO - Go to step 19.
16. Clear the DTC with the HDS.
17. Start the engine, disable the TCS/VSA by pressing the TCS/VSA OFF switch, run the vehicle in the D position until the vehicle speed reaches 35 mph (56 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 screen indicate FAILED?
YES - Go to step 19.
NO - 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 17.
19. Turn the ignition switch OFF.
20. Disconnect the transmission range switch connector.
21. Check for continuity between transmission range switch connector terminal No. 6 and body ground.
Is there continuity?
YES - Go to step 22.
NO - Repair open in the wire between transmission range switch connector terminal No. 6 and ground (G101, G102), or repair poor ground (G101, G102), then go to step 27.
22. Turn the ignition switch ON (II).
23. Measure voltage between transmission range switch connector terminal No. 1 and No. 6.
Is there voltage?
YES - Go to step 24.
NO - Repair open in the wire between the transmission range switch and PCM connector terminal C19, then go to step 27.
24. Measure voltage between transmission range switch connector terminal No. 3 and No. 6.
Is there voltage?
YES - Go to step 25.
NO - Repair open in the wire between the transmission range switch and PCM connector terminal C10, then go to step 27.
25. Measure voltage between transmission range switch connector terminal No. 6 and No. 8.
Is there voltage?
YES - Go to step 26.
NO - Repair open in the wire between the transmission range switch and PCM connector terminal C18, then go to step 27.
26. Measure voltage between transmission range switch connector terminal No. 2 and No. 6.
Is there voltage?
YES - Go to step 33.
NO - Repair open in the wire between the transmission range switch and PCM connector terminal C2, then go to step 27.
27. Reconnect all connectors.
28. Turn the ignition switch ON (II).
29. Clear the DTC with the HDS.
30. Start the engine, disable the TCS/VSA by pressing the TCS/VSA OFF switch, run the vehicle in the D position until the vehicle speed reaches 35 mph (56 km/h), then slow down and stop the wheels.
31. 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 32.
32. 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 stop 31, 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 30.
33. Update the PCM if it does not have the latest software, or substitute a known good PCM.
34. Start the engine, disable the TCS/VSA by pressing the TCS/VSA OFF switch, run the vehicle in the D position until the vehicle speed reaches 35 mph (56 km/h), then slow down and stop the wheels.
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. If the PCM was updated, substitute a known-good PCM, then go to step 34. If the PCM was substituted, 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 - 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 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. If the PCM was updated, substitute a known-good PCM, then go to step 34. If the PCM was substituted, go to step 1. If the screen indicates NOT COMPLETED, go to step 34.