P0705

DTC P0705: Short in Transmission Range Switch Circuit (Multiple Shift-position Input)
2003 AT-PZEV (SULEV) and 2004-2005 AT-PZEV Models

NOTE:
^ Record all freeze data and review General Troubleshooting Information before you troubleshoot.
^ 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. Shift the shift lever out of the P position, then move to each position slowly.
3. Check that DTC P0705 recurs.
Is DTC P0705 indicated?
YES- Go to step 4.
NO- Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the transmission range switch and TCM.
4. Check the FORWARD SWITCH input with the HDS while shifting the shift lever all positions.
Is the FORWARD SWITCH ON in any position of the P, R, N, or L?
YES- Check for a short to ground in the wire between TCM connector terminal A14 and the transmission range switch. If the wire is OK, replace the transmission range switch, then go to step 38.
NO- Go to step 5.
5. Check the transmission range switch.
Is the switch OK?
YES- Go to step 6.
NO- Replace the transmission range switch, then go to step 38.
6. Turn the ignition switch ON (II).
7. Shift to all positions other than R.





8. Measure the voltage between TCM connector terminals A17 and A23 or A24.
Is there battery voltage?
YES- Go to step 13.
NO- Go to step 9.
9. Turn the ignition switch OFF.
10. Disconnect TCM connector A (31P).





11. Check for continuity between TCM connector terminal A17 and body ground.
Is there continuity?
YES- Repair short in the wire between TCM connector terminal A17 and transmission range switch or A/T gear position indicator.
NO- Go to step 12.





12. Check for continuity between TCM connector terminals A23 and body ground, and between A24 and body ground.
Is there continuity?
YES- Update the TCM if it does not have the latest software, or substitute a known-good TCM, then recheck. If the symptom/indication goes away with a known-good TCM, replace the original TCM
NO- Repair open in the wire between TCM connector terminals A23, A24, and ground (G101), or repair poor ground (G101).
13. Shift to all positions other than D.





14. Measure the voltage between TCM connector terminals A15 and A23 or A24.
Is there about 5 V?
YES- Go to step 18.
NO- Go to step 15.
15. Turn the ignition switch OFF.
16. Disconnect TCM connector A (31P).





17. Check for continuity between TCM connector terminal A15 and body ground.
Is there continuity?
YES- Repair short in the wire between TCM connector terminal A15 and transmission range switch.
NO- Update the TCM if it does not have the latest software, or substitute a known-good TCM, then recheck. If the symptom/indication goes away with a known-good TCM, replace the original TCM.
18. Shift to all positions other than S.





19. Measure the voltage between TCM connector terminals A16 and A23 or A24.
Is there about 5 V?
YES- Go to step 23.
NO- Go to step 20.
20. Turn the ignition switch OFF.
21. Disconnect TCM connector A (31P).





22. Check for continuity between TCM connector terminal A16 and body ground.
Is there continuity?
YES- Repair short in the wire between TCM connector terminal A16 and transmission range switch.
NO- Update the TCM if it does not have the latest software, or substitute a known-good TCM, then recheck. If the symptom/indication goes away with a known-good TCM, replace the original TCM.
23. Shift to all positions other than L.





24. Measure the voltage between TCM connector terminals A18 and A23 or A24.
Is there about 5 V?
YES- Go to step 28.
NO- Go to step 25.
25. Turn the ignition switch OFF.
26. Disconnect TCM connector A (31P).





27. Check for continuity between TCM connector terminal A18 and body ground.
Is there continuity?
YES- Repair short in the wire between TCM connector terminal A18 and transmission range switch.
NO- Update the TCM if it does not have the latest software, or substitute a known-good TCM, then recheck. If the symptom/indication goes away with a known-good TCM, replace the original TCM.
28. Shift to all positions other than D and S.





29. Measure the voltage between TCM connector terminals A14 and A23 or A24.
Is there about 5 V?
YES- Go to step 33.
NO- Go to step 30.
30. Turn the ignition switch OFF.
31. Disconnect TCM connector A (31P).





32. Check for continuity between TCM connector terminal A14 and body ground.
Is there continuity?
YES- Repair short in the wire between TCM connector terminal A14 and transmission range switch.
NO- Update the TCM if it does not have the latest software, or substitute a known-good TCM, then recheck. If the symptom/indication goes away with a known-good TCM, replace the original TCM.
33. Shift to all positions other than P and N.





34. Measure the voltage between TCM connector terminals A19 and A23 or A24.
Is there about 5 V?
YES- Update the TCM if it does not have the latest software, or substitute a known-good TCM, then recheck. If the symptom/indication goes away with a known-good TCM, replace the original TCM.
NO- Go to step 35.
35. Turn the ignition switch OFF.
36. Disconnect TCM connector A (31P).





37. Check for continuity between TCM connector terminal A19 and body ground.
Is there continuity?
YES- Repair short in the wire between TCM connector terminal A19 and gauge assembly connector terminals B20, B10, or B8, and transmission range switch.
NO- Update the TCM if it does not have the latest software, or substitute a known-good TCM, then recheck. If the symptom/indication goes away with a known-good TCM, replace the original TCM.
38. Clear the DTC with the HDS.
39. Shift the shift lever out of the P position, then move to each position slowly.
40. Check that DTC P0705 recurs.
Is DTC P0705 indicated?
YES- Return to step 4 and recheck.
NO- The problem has been corrected.