P0706
DTC P0706: Open in Transmission Range Switch CircuitNOTE:
^ Record all freeze data 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.
3. Start the engine, drive 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 6.
NO - Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the transmission range switch and PCM. If the tester indicates NOT COMPLETED, return to step 1 and recheck.
5. Inspect the transmission range switch.
Is the switch OK?
YES - Inspect the end of the selector control shaft, then go to step 6.
NO - Replace the transmission range switch, then go to step 24.
6. Install the transmission range switch correctly, and adjust the shift cable.
7. Clear the DTC with the HDS.
8. Shift the shift lever into the D position, and verify the ATP FWD and ATP D inputs with the HDS in the A/T data 1st.
Is the ATP FWD and ATP D ON?
YES - Go to step 9.
NO - Go to step 16.
9. 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 10.
NO - Go to step 16.
10. Shift to the 2 position, and verify the ATP FWD and ATP 2 inputs with the HDS in the A/T data list.
Is the ATP FWD and ATP 2 ON?
YES - Go to step 11.
NO - Go to step 16.
11. Shift to the 1 position, and verify the ATP 1 signal with the HDS in the A/T data list.
Is the ATP 1 ON?
YES - Go to step 12.
NO - Go to step 16.
12. Clear the DTC with the HDS, and turn the ignition switch OFF.
13. Raise the front of the vehicle, make sure it is securely supported, and allow the front wheels to rotate freely.
14. Start the engine, drive the vehicle in the D position until the vehicle speed reaches 35 mph (56 km/h), then slow down and stop the wheels.
15. 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 16.
NO - intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the transmission range switch and PCM. If the tester indicates NOT COMPLETED, return to step 12 and recheck.
16. Turn the ignition switch OFF.
17. Disconnect the transmission range switch connector.
18. Check for continuity between transmission range switch connector terminal No. 6 and body ground.
Is there continuity?
YES - Go to step 19.
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 24.
19. Turn the ignition switch ON (II).
20. Measure the voltage between transmission range switch connector terminals No. 1 and No. 6.
Is there voltage?
YES - Go to step 21.
NO - Repair open in the wire between the transmission range switch and PCM connector terminal C19, then go to step 24.
21. Measure the voltage between transmission range switch connector terminals No. 3 and No. 6.
Is there voltage?
YES - Go to step 22.
NO - Repair open in the wire between the transmission range switch and PCM connector terminal C10, then go to step 24.
22. Measure the voltage between transmission range switch connector terminals No. 6 and No. 8.
Is there voltage?
YES - Go to step 23.
NO - Repair open in the wire between the transmission range switch and PCM connector terminal C18, then go to step 24.
23. Measure the voltage between transmission range switch connector terminals No. 2 and No. 6.
Is there voltage?
YES - Update the PCM if it does not have the latest software, or substitute a known-good PCM, then recheck. If the symptom/indication goes away with a known-good PCM, replace the original PCM.
NO - Repair open in the wire between the transmission range switch and PCM connector terminal C2, then go to step 24.
24. Clear the DTC with the HDS.
25. Turn the ignition switch OFF.
26. Raise the front of the vehicle, make sure it is securely supported, and allow the front wheels to rotate freely.
27. Start the engine, drive the vehicle in the D position until the vehicle speed reaches 35 mph (56 km/h), then slow down and stop the wheels.
28. 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 - Return to step 1 and recheck.