DTC Troubleshooting

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. Disconnect the transmission range switch subharness connector.
6. Turn the ignition switch ON (II).
7. Verify the ATP P, ATP R, ATP N, ATP D, ATP S, ATP FWD, and ATP RVS inputs with the HDS in the A/T data list.

Do any of the inputs indicate ON?

YES - Repair short in the circuit that indicates ON:

^ ATP P circuit: between PCM connector terminal B13 and transmission range switch subharness connector terminal No. 7.
^ ATP R' circuit: between PCM connector terminal B14 and transmission range switch subharness connector terminal No. 8.
^ ATP N circuit: between PCM connector terminal B12 and transmission range switch subharness connector terminal No. 3.
^ ATP D circuit: between PCM connector terminal B21 and transmission range switch subharness connector terminal No. 9.
^ ATP S circuit: between PCM connector terminal B15 and transmission range switch subharness connector terminal No. 4.
^ ATP FWD circuit: between PCM connector terminal B28 and transmission range switch subharness connector terminal No. 5.
^ ATP RVS circuit: between PCM connector terminal B22 and transmission range switch subharness connector terminal No. 2.

Go to step 8 after repairing the circuit.

NO - Check the transmission range switch. If the transmission range switch is OK, replace the transmission range switch subharness, then go to step 8.

8. Clear the DTC with the HDS.
9. Start the engine.
10. With the brake pedal pressed, move the shift lever through all positions. Stop for at least 1 second in each position.
11. Check for DTC(s) in the DTCs/Freeze Data in A/T Mode Menu with the HDS.

Is DTC P0705 indicated?

YES - Replace the transmission range switch, then go to step 8.

NO - Go to step 12.

12. 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. If any other DTCs were indicated on step 11, go to the indicated DTC's troubleshooting.

NO - If the HDS indicates FAILED, 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 9 and recheck.