Part 2 of 2

DTC 27 (P0705): Transmission Range Switch System (Open Circuit)

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Part 2 Of 2:

DIAGNOSIS
STEP 22. Check the transmission range switch.











Measure the resistance between the terminals for each transmission range as indicated in the table.
Q: Is the measured resistance less than 2 ohms for each transmission range?
YES: Go to Step 23.
NO: Replace the transmission range switch.

STEP 23. Check transmission range switch connector B-16 for loose, corroded or damaged terminals, or terminals pushed back in the connector.





Q: Are the connector and terminals in good condition?
YES: Go to Step 24.
NO: Repair or replace the damaged components.

STEP 24. Measure the transmission range switch output voltage at PCM connector C-114 by backprobing.





1. Do not disconnect connector C-114.
2. Turn the ignition switch to the "ON" position.
3. Move the selector lever to the "D" position.





4. Measure the voltage between terminal 102 and ground.
^ The voltage should be measured battery positive voltage.
5. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the measured voltage battery positive voltage?
YES: Go to Step 11.
NO: Go to Step 25.

STEP 25. Check PCM connector C-114 for loose, corroded or damaged terminals, or terminals pushed back in the connector.





Q: Are the connector and terminals in good condition?
YES: Go to Step 26.
NO: Repair or replace the damaged components.

STEP 26. Check harness for open circuit or short circuit to ground between transmission range switch connector B-16 terminal 1 and PCM connector C-114 terminal 102.








Q: Is the harness wire in good condition?
YES: Go to Step 5.
NO: Repair or replace the harness wire.

STEP 27. Check the transmission range switch.











Measure the resistance between the terminals for each transmission range as indicated in the table.
Q: Is the measured resistance less than 2 ohms for each transmission range?
YES: Go to Step 28.
NO: Replace the transmission range switch.

STEP 28. Check transmission range switch connector B-16 for loose, corroded or damaged terminals, or terminals pushed back in the connector.





Q: Are the connector and terminals in good condition?
YES: Go to Step 29.
NO: Repair or replace the damaged components.

STEP 29. Measure the transmission range switch output voltage at PCM connector C-114 by backprobing.





1. Do not disconnect connector C-114.
2. Turn the ignition switch to the "ON" position.
3. Move the selector lever to the "3" position.





4. Measure the voltage between terminal 109 and ground.
^ The voltage should be measured battery positive voltage.
5. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the measured voltage battery positive voltage?
YES: Go to Step 11.
NO: Go to Step 30.

STEP 30. Check PCM connector C-114 for loose, corroded or damaged terminals, or terminals pushed back in the connector.





Q: Are the connector and terminals in good condition?
YES: Go to Step 31.
NO: Repair or replace the damaged components.

STEP 31. Check harness for open circuit or short circuit to ground between transmission range switch connector B-16 terminal 5 and PCM connector C-114 terminal 109.








Q: Is the harness wire in good condition?
YES: Go to Step 5.
NO: Repair or replace the harness wire.

STEP 32. Check the transmission range switch.











Measure the resistance between the terminals for each transmission range as indicated in the table.
Q: Is the measured resistance less than 2 ohms for each transmission range?
YES: Go to Step 33.
NO: Replace the transmission range switch.

STEP 33. Check transmission range switch connector B-16 for loose, corroded or damaged terminals, or terminals pushed back in the connector.





Q: Are the connector and terminals in good condition?
YES: Go to Step 34.
NO: Repair or replace the damaged components.

STEP 34. Measure the transmission range switch output voltage at PCM connector C-114 by backprobing.





1. Do not disconnect connector C-114.
2. Turn the ignition switch to the "ON" position.
3. Move the selector lever to the "2" position.





4. Measure the voltage between terminal 122 and ground.
^ The voltage should be measured battery positive voltage.
5. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the measured voltage battery positive voltage?
YES: Go to Step 11.
NO: Go to Step 35.

STEP 35. Check PCM connector C-114 for loose, corroded or damaged terminals, or terminals pushed back in the connector.





Q: Are the connector and terminals in good condition?
YES: Go to Step 36.
NO: Repair or replace the damaged components.

STEP 36. Check harness for open circuit or short circuit to ground between transmission range switch connector B-16 terminal 2 and PCM connector C-114 terminal 122.








Q: Is the harness wire in good condition?
YES: Go to Step 5.
NO: Repair or replace the harness wire.

STEP 37. Check the transmission range switch.











Measure the resistance between the terminals for each transmission range as indicated in the table.
Q: Is the measured resistance less than 2 ohms for each transmission range?
YES: Go to Step 38.
NO: Replace the transmission range switch.

STEP 38. Check transmission range switch connector B-16 for loose, corroded or damaged terminals, or terminals pushed back in the connector.





Q: Are the connector and terminals in good condition?
YES: Go to Step 39.
NO: Repair or replace the damaged components.

STEP 39. Measure the transmission range switch output voltage at PCM connector C-114 by backprobing.





1. Do not disconnect connector C-114.
2. Turn the ignition switch to the "ON" position.
3. Move the selector lever to the "L" position.





4. Measure the voltage between terminal 110 and ground.
^ The voltage should be measured battery positive voltage.
5. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the measured voltage battery positive voltage?
YES: Go to Step 11.
NO: Go to Step 40.

STEP 40. Check PCM connector C-114 for loose, corroded or damaged terminals, or terminals pushed back in the connector.





Q: Are the connector and terminals in good condition?
YES: Go to Step 41.
NO: Repair or replace the damaged components.

STEP 41. Check harness for open circuit or short circuit to ground between transmission range switch connector B-16 terminal 6 and PCM connector C-114 terminal 110.








Q: Is the harness wire in good condition?
YES: Go to Step 5.
NO: Repair or replace the harness wire.