P0706
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 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.
3. Start the engine, run the vehicle in the D position until the vehicle speed reaches 35 mph (56 km/h), then slow down and stop the wheels.
4. Monitor the OBD status for P0706 in the DTCs/Freeze Data in A/T Mode Menu for a pass/fail.
Does the result indicate FAILED?
YES - Go to step 5.
NO - Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the transmission range switch and the PCM. If the HDS indicates NOT COMPLETED, return to step 3 and recheck.
5. Turn the ignition switch OFF.
6. Inspect the transmission range switch.
Is the switch OK?
YES - Go to step 7.
NO - Replace the transmission range switch, then go to step 28.
7. Install the transmission range switch, and adjust the shift cable.
8. Clear the DTC with the HDS.
9. Turn the ignition switch OFF.
10. Start the engine, run the vehicle in the D position until the vehicle speed reaches 35 mph (56 km/h), then slow down and stop the wheels.
11. Monitor the OBD status for, P0706 in the DTCs/Freeze Data in A/T Mode Menu for a pass/fail.
Does the result indicate FAILED?
YES - Go to step 12.
NO - Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the transmission range switch and the PCM. If the HDS indicates NOT COMPLETED, return to step 10 and recheck.
12. Clear the DTC with the HDS.
13. Shift to the D position, and verify the ATP FWD and ATP D inputs with the HDS In the A/T data list.
Is ATP FWD and ATP D ON?
YES - Go to step 14.
NO - Go to step 20.
14. Shift to the D3 position, and verify the ATP FWD and ATP D3 inputs with the HDS in the A/T data list.
Is ATP FWD and ATP D3 0N?
YES - Go to step 15.
NO - Go to step 20.
15. Shift to the 2 position, and verify the ATP FWD and ATP 2-1 inputs with the HDS in the A/T data list.
Is ATP FWD and ATP 2-1 ON?
YES - Go to step 16.
NO - Go to step 20.
16. Clear the DTC with the HDS.
17. Turn the ignition switch OFF.
18. Start the engine, run the vehicle in the D position until the vehicle speed reaches 35 mph (56 km/h), then slow down and stop the wheels.
19. Monitor the OBD status for P0706 in the DTCs/Freeze Data in A/T Mode Menu for a pass/fail.
Does the result indicate FAILED?
YES - Go to step 20.
NO - Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the transmission range switch and the PCM. If the HDS indicates NOT COMPLETED, return to step 18 and recheck.
20. Turn the ignition switch OFF.
21. Disconnect the transmission range switch connector.
22. Check for continuity between transmission range switch connector terminal No. 10 and body ground.
Is there continuity?
YES - Go to step 23.
NO - Repair open in the wire between the transmission range switch and ground (G101), or repair poor ground (G101), then go to step 28.
23. Turn the ignition switch ON (II).
24. Measure voltage between transmission range switch connector terminals No. 5 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 B28, then go to step 28.
25. Measure voltage between transmission range switch connector terminals No. 8 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 B2 1, then go to step 28.
26. Measure voltage between transmission range switch connector terminals No. 3 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 B15, then go to step 28.
27. Measure voltage between transmission range switch connector terminals No. 9 and No. 10.
Is there battery voltage?
YES - Update the PCM if it does not have the latest software, or substitute a known-good PCM, then recheck for DTC P0705. If the symptom/indication goes away with a known-good PCM, replace the original PCM, then go to step 28.
NO - Repair open in the wire between the transmission range switch and PCM connector terminal B16, then go to step 28.
28. Clear the DTC with the HDS.
29. 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.
30. Start the engine, 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. Monitor the OBD status for P0706 in the DTCs/Freeze Data in A/T Mode Menu for a pass/fail.
Does the result indicate PASSED?
YES - Troubleshooting is complete.
NO - If the PCM was updated and the screen indicates FAILED, substitute a known-good PCM, then return to step 28. If the PCM was substituted and the screen indicates FAILED, return to step 1 and recheck. If the screen indicates NOT COMPLETED, return to step 29.