P1705

DTC P1705: Short in Transmission Range Switch Circuit

NOTE: Record all freeze data and review General Troubleshooting Information before you troubleshoot.

1. Turn the ignition switch ON (II).
2. Observe the A/T gear position indicator, and shift to each position.
Do any indicators stay on when the shift lever is not in that position?
YES-Go to step 3.
NO-Go to step 4.
3. Clear the DTC, test-drive the vehicle, and recheck for DTC P1705.
Does the OBD II scan tool indicate code P1705?
YES-Review the freeze data. If the freeze data indicates more than one gear position indicator on at one time, go to step 4.
NO-Intermittent failure; wiggle the wire harness and check for an intermittent short to ground.
4. Disconnect the transmission range switch connector.
Do all gear position indicators go out?
YES-Replace the transmission range switch.
NO-Turn the ignition switch OFF, then go to step 5.
5. Test the transmission range switch.
Is the switch OK ?
YES-Go to step 6.
NO-Replace the transmission range switch.
6. Connect the transmission range switch connector.
7. Turn the ignition switch ON (II).
8. Shift to all positions other than [R].





9. Measure the voltage between TCM connector terminals A17 and A23 or A24.
Is there about 9 V?
YES-Go to step 10.
NO-Check for short in the wire between TCM connector terminal A17 and the transmission range switch or A/T gear position indicator, and check for an open in ground wires between TCM connector terminals A23 and A24, and ground (G101). If the wires are OK, 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.
10. Shift to all positions other than [D].





11. Measure the voltage between TCM connector terminals A15 and A23 or A24.
Is thereabout 5 V?
YES-Go to step 12.
NO-Check for short in the wire between TCM connector terminal A15 and the transmission range switch. If the wire is OK, 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.
12. Shift to all positions other than N.





13. Measure the voltage between TCM connector terminals A16 and A23 or A24.
Is there about 5 V?
YES-Go to step 14.
NO-Check for short in the wire between TCM connector terminal A16 and the transmission range switch. If the wire is OK, 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.
14. Shift to all positions other than [L].





15. Measure the voltage between TCM connector terminals A18 and A23 or A24.
Is thereabout 5 V?
YES-Go to step 16
NO-Check for short in the wire between TCM connector terminal A18 and the transmission range switch. If the wire is OK, 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.
16. Shift to any position other than [D] and [S].





17. Measure the voltage between TCM connector terminals A14 and A23 or A24.
Is thereabout 5 V?
YES-Go to step 18
NO-Check for short in the wire between TCM connector terminal A14 and the transmission range switch. If the wire is OK, 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 [P] and [N].





19. 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-Check for short in the wire between TCM connector terminal A19 and gauge assembly connector terminals B20, B10 or B8, and the transmission range switch. If the wire is OK, replace with a known-good gauge assembly. If problem is not fixed by replacing the gauge assembly, 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.