DTC Troubleshooting

DTC Troubleshooting: P0706 (6)

DTC P0706: Transmission Range Switch Circuit (Open)

NOTE:

- Before you troubleshoot, record all freeze data and any on-board snapshot, and review General Troubleshooting Information. How to Troubleshoot A/T Systems

- 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 vehicle on a lift, make sure it is securely supported, and allow all four wheels to rotate freely.

3. Start the engine, and disable the VSA by pressing the VSA OFF switch. Run the engine in D until the vehicle speed reaches 25 mph (40 km/h), then slow down, and stop the wheels.

4. Verify the Forward Switch (ATP FWD) input with the HDS in the A/T data list while the shift lever is in D and S.

Is Forward Switch (ATP FWD) ON in both D and S?
YES - Intermittent failure, the system is OK at this time.

NO - Go to step 5.


5. Turn the ignition switch to LOCK (0).

6. Disconnect the transmission range switch connector.

7. Connect the following terminal of the transmission range switch connector to body ground with a jumper wire:
- '07 model: No. 6 terminal

- '08-09 models: No. 5 terminal

Turn the ignition switch to ON (II), and verify the Forward Switch (ATP FWD) input in the A/T data list.

Is Forward Switch (ATP FWD) ON?
YES - Go to step 8.

NO - Repair open in the wire between PCM connector terminal B28 and the transmission range switch, then go to step 15.


'07 Model





'08-09 Models





8. Turn the ignition switch to LOCK (0).

9. Check for continuity between transmission range switch connector terminal and body ground:
- '07 model: No. 5 terminal

- '08-09 models: No. 6 terminal

Is there continuity?
YES - Go to step 10.

NO - Repair open in the wire between the transmission range switch and ground (G101), or repair poor ground (G101), then go to step 15.


'07 Model





'08-09 Models





10. Inspect the transmission range switch. Transmission Range Switch Test

Is the switch OK?
YES - Connect the transmission range switch connector, then go to step 11.

NO - Replace the transmission range switch, Service and Repair then go to step 15.


11. Update the A/T software in the PCM if it does not have the latest software, PCM Update or substitute a known-good PCM. How to Troubleshoot A/T Systems

12. Run the engine in D until the vehicle speed reaches 25 mph (40 km/h). Slow down, and stop the wheels.

13. Check for Temporary DTCs or DTCs with the HDS.

Is DTC P0706 indicated?
YES - Check for poor connections and loose terminals at the transmission range switch and the PCM. If the PCM was updated, substitute a known-good PCM, How to Troubleshoot A/T Systems then recheck. If the PCM was substituted, go to step 1.

NO - Go to step 14.


14. Monitor the OBD STATUS for P0706 in the DTCs/Freeze Data in A/T Mode Menu for a pass/fail.

Does the HDS indicate PASSED?
YES - If the PCM was updated, troubleshooting is complete. If the PCM was substituted, replace the original PCM. Service and Repair If any other DTCs were indicated on step 13, go to the indicated DTC's troubleshooting.

NO - Check for poor connections and loose terminals at the transmission range switch and the PCM. If the PCM was updated, substitute a known-good PCM, How to Troubleshoot A/T Systems then recheck. If the PCM was substituted, go to step 1. If the HDS indicates NOT COMPLETED, return to step 12 and recheck.


15. Clear the DTC with the HDS.

16. Run the engine in D until the vehicle speed reaches 25 mph (40 km/h). Slow down, and stop the wheels.

17. Check for Temporary DTCs or DTCs with the HDS.

Is DTC P0706 indicated?
YES - Check for poor connections and loose terminals at the transmission range switch and the PCM, then go to step 1.

NO - Go to step 18.


18. Monitor the OBD STATUS for P0706 in the DTCs/Freeze Data in A/T Mode Menu for a pass/fail.

Does the HDS indicate PASSED?
YES - Troubleshooting is complete. If any other DTCs were indicated on step 17, go to the indicated DTC's troubleshooting.

NO - Check for poor connections and loose terminals at the transmission range switch and the PCM, then go to step 1. If the HDS indicates NOT COMPLETED, return to step 16 and recheck.