DTC Troubleshooting

DTC Troubleshooting: P0706 (6-2)

DTC P0706:

Open in Transmission Range Switch Circuit

NOTE:

- Before you troubleshoot, record all freeze data and any on-board snapshot with the HDS, and review the General Troubleshooting Information How to Troubleshoot the A/T System.
- This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission.

1. Make sure the shift cable is adjusted properly Adjustments.

2. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

3. Compare the ATPP, ATPR, ATPN, ATPD, ATPS, ATPFWD, and ATPRVS inputs with the HDS to the following table, in each shift lever position.





Do the transmission range switch signals match?

YES -

Intermittent failure, the system is OK at this time.

NO -

Go to step 4.

4. Compare the ATPP, ATPR, ATPN, ATPD, ATPS, ATPFWD, and ATPRVS inputs with the HDS to the table in step 3, in each shift lever position.

Do all signals remain OFF?

YES -

Go to step 14.

NO -

Record the input that did not indicate ON, then go to step 5.

5. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

6. Disconnect the transmission range switch connector.

7. Connect the transmission range switch connector terminal which did not indicate ON in step 4 to body ground with a jumper wire.

8. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

9. Check the transmission range switch signal that did not indicate ON with the HDS.

Does the transmission range switch signal indicate ON?

YES -

Replace the transmission range switch Service and Repair.

NO -

Go to step 10.

10. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

11. Jump the SCS line with the HDS.

12. Disconnect PCM connector A (49P) or C (49P).

13. Check for continuity between the transmission range switch connector terminal and the PCM connector terminal of the input which indicated OFF. Refer to the following table.





Is there continuity?

YES -

Update the PCM if it does not have the latest software ECM/PCM Update. If the PCM was updated, replace the PCM Service and Repair.

NO -

Repair an open in the wire between the corresponding transmission range switch connector terminal and the PCM.

14. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

15. Disconnect the transmission range switch connector.

16. Check for continuity between transmission range switch connector terminal No. 6 and body ground.





Is there continuity?

YES -

Replace the transmission range switch Service and Repair.

NO -

Repair an open in the wire between the transmission range switch and body ground (G101), or repair poor body ground (G101).