P0705

DTC P0705: Short in Transmission Range Switch Circuit (Multiple Shift-position Input)

NOTE:
^ 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. Start the engine.
3. With the brake pedal pressed, move the shift lever through all positions. Stop for at least 1 second in each position, and monitor the OBD status for P0705 in the DTCs/Freeze Data in A/T Mode Menu for a pass/fail.
Does the result indicate FAILED?
YES - Go to step 4.
NO - Intermittent failure, the system is OK at this time. Check for an intermittent short in the wire between the transmission range switch and the PCM. If the HDS indicates NOT COMPLETED, return to step 2 and recheck.

4. Turn the ignition switch OFF.
5. Inspect the transmission range switch.
Is the switch OK?
YES - With the switch connector disconnected, go to step 6.
NO - Replace the transmission range switch, then go to step 48.

6. Turn the ignition switch ON (II).





7. Measure voltage between transmission range switch connector terminals No. 6 and No. 10.
Is there battery voltage?
YES - Go to step 13.
NO - Go to step 8.

8. Turn the ignition switch OFF.
9. Jump the SCS line with the HDS.
10. Disconnect PCM connector B (44P).





11. Check for continuity between PCM connector terminal B13 and body ground.
Is there continuity?
YES - Repair short in the wire between PCM connector terminal B13 and transmission range switch, then go to step 48.
NO - Go to step 12.





12. Check for continuity between transmission range switch connector terminal No. 10 and body ground.
Is there continuity?
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 48.
NO - Repair open in the wire between transmission range switch connector terminal No. 10 and ground (G101), or repair poor ground (G101), then go to stop 48.





13. Measure voltage between transmission range switch connector terminals No. 7 and No. 10.
Is there battery voltage?
YES - Go to step 18.
NO - Go to step 14.

14. Turn the ignition switch OFF.
15. Jump the SCS line with the HDS.
16. Disconnect PCM connector B (44P).





17. Check for continuity between PCM connector terminal B14 and body ground.
Is there continuity?
YES - Repair short in the wire between PCM connector terminal B14 and transmission range switch, then go to step 48.
NO - 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 48.





18. Measure voltage between transmission range switch connector terminals No. 2 and No. 10.
Is there about 5 V?
YES - Go to step 23.
NO - Go to step 19.

19. Turn the ignition switch OFF.
20. Jump the SCS line with the HDS.
21. Disconnect PCM connector B (44P).





22. Check for continuity between PCM connector terminal B12 and body ground.
Is there continuity?
YES - Repair short in the wire between PCM connector terminal B12 and transmission range switch, then go to step 48.
NO - 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 48.





23. Measure voltage between transmission range switch connector terminals No. 8 and No. 10.
Is there battery voltage?
YES - Go to step 28.
NO - Go to step 24.

24. Turn the ignition switch OFF.
25. Jump the SCS line with the HDS.
26. Disconnect PCM connector B (44P).





27. Check for continuity between PCM connector terminal B21 and body ground.
Is there continuity?
YES - Repair short in the wire between PCM connector terminal B21 and transmission range switch, then go to step 48.
NO - 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 48.





28. Measure voltage between transmission range switch connector terminals No. 3 and No. 10.
Is there battery voltage?
YES - Go to step 33.
NO - Go to step 29.

29. Turn the ignition switch OFF.
30. Jump the SCS line with the HDS.
31. Disconnect PCM connector B (44P).





32. Check for continuity between PCM connector terminal B15 and body ground.
Is there continuity?
YES - Repair short in the wire between PCM connector terminal B15 and transmission range switch, then go to step 48.
NO - 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 48.





33. Measure voltage between transmission range switch connector terminals No. 9 and No. 10.
Is there battery voltage?
YES - Go to step 38.
NO - Go to step 34.

34. Turn the ignition switch OFF.
35. Jump the SCS line with the HDS.
36. Disconnect PCM connector B (44P).





37. Check for continuity between PCM connector terminal B16 and body ground.
Is there continuity?
YES - Repair short in the wire between PCM connector terminal 1316 and transmission range switch, then go to step 48.
NO - 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 48.





38. Measure voltage between transmission range switch connector terminals No. 5 and No. 10.
Is there battery voltage?
YES - Go to step 43.
NO - Go to step 39.

39. Turn the ignition switch OFF.
40. Jump the SCS line with the HDS.
41. Disconnect PCM connector B (44P).





42. Check for continuity between PCM connector terminal B28 and body ground.
Is there continuity?
YES - Repair short in the wire between PCM connector terminal B28 and transmission range switch, then go to step 48.
NO - 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 48.





43. Measure voltage between transmission range switch connector terminals No. 1 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 48.
NO - Go to step 44.

44. Turn the ignition switch OFF.
45. Jump the SCS line with the HDS.
46. Disconnect PCM connector B (44P).





47. Check for continuity between PCM connector terminal B22 and body ground.
Is there continuity?
YES - Repair short in the wire between PCM connector terminal B22 and transmission range switch, then go to step 48.
NO - 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 48.

48. Clear the DTC with the HDS.
49. Start the engine.
50. With the brake pedal pressed, move the shift lever through all positions. Stop for at least 1 second in each position.
51. Monitor the OBD status for P0705 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 48. 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 49.