Part 2
DTC 27 (P0705): Transmission Range Switch System (Open Circuit)(continued)STEP 15. Check PCM connector B-21 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 16.
NO: Repair or replace the damaged components.
STEP 16. Check harness for open circuit or short circuit to ground between PCM connector B-21 terminal 61 and transmission range switch connector B-110 terminal 7.
Q: Is the harness wire in good condition?
YES: Go to Step 5.
NO: Repair or replace the harness wire.
STEP 17. Check the transmission range switch. Measure the resistance between the terminals for each transmission range as indicated in the table.
NOTE: For vehicles with sport mode, four positions (P, R, N, D) are used.
Q: Is the measured resistance less than 2 ohms for each transmission range?
YES: Go to Step 18.
NO: Replace the transmission range switch.
STEP 18. Check transmission range switch connector B-110 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 19.
NO: Repair or replace the damaged components.
STEP 19. Measure the transmission range switch output voltage at PCM connector B-21 by using check harness special tool MB991923.
1. Disconnect all the connectors from the PCM.
2. Connect special tool MB991923 (check harness) between the PCM and the body-side harness connector.
3. Turn the ignition switch to the "ON" position.
4. Move the selector lever to the "N" position.
5. Measure the voltage between terminal 77 and ground.
^ The voltage should measure battery positive voltage.
6. 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 20.
STEP 20. Check PCM connector B-21 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 21.
NO: Repair or replace the damaged components.
STEP 21. Check harness for open circuit or short circuit to ground between PCM connector B-21 terminal 77 and transmission range switch connector B-110 terminal 4.
Q: Is the harness wire in good condition?
YES: Go to Step 5.
NO: Repair or replace the harness wire.
STEP 22. Check the transmission range switch. Measure the resistance between the terminals for each transmission range is indicated in the table.
NOTE: For vehicles with sport mode, four positions (P, R, N, D) are used.
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-110 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 B-21 by using check harness special tool MB991923.
1. Disconnect all the connectors from the PCM.
2. Connect special tool MB991923 (check harness) between the PCM and the body-side harness connector.
3. Turn the ignition switch to the "ON" position.
4. Move the selector lever to the "D" position.
5. Measure the voltage between terminal 73 and ground.
^ The voltage should equal battery voltage (approximately] 2 volts).
6. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Does the voltage measure battery positive voltage?
YES: Go to Step 11.
NO: Go to Step 25.
STEP 25. Check PCM connector B-21 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 PCM connector B-21 terminal 73 and transmission range switch connector B-110 terminal.
Q: Is the harness wire in good condition?
YES
YES
NO: Repair or replace the harness wire.
STEP 27. Check intermediate connector A-13, and shift switch assembly connector C-20 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 28.
NO: Repair or replace the damaged components.
STEP 28. Check harness for short circuit to ground between transmission range switch connector B-110 terminal and shift switch assembly connector C-20 terminal 6.
Q: Is the harness wire in good condition?
YES: Go to Step 5.
NO: Repair or replace the harness wire.
STEP 29. Check the transmission range switch. Measure the resistance between the terminals for each transmission range is indicated in the table.
Q: Is the measured resistance less than 2 ohms for each transmission range?
YES: Go to Step 30.
NO: Replace the transmission range switch.
STEP 30. Check transmission range switch connector B-110 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. Measure the transmission range switch output voltage at PCM connector B-21 by using check harness special tool MB991923.
1. Disconnect all the connectors from the PCM.
2. Connect special tool MB991923 (check harness) between the PCM and the body-side harness connector.
3. Turn the ignition switch to the "ON" position.
4. Move the selector lever to the "3" position.
5. Measure the voltage between terminal 62 and ground.
^ The voltage should measure battery positive voltage.
6. 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 32.
STEP 32. Check PCM connector B-21 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 33.
NO: Repair or replace the damaged components.
STEP 33. Check harness for open circuit or short circuit to ground between PCM connector B-21 terminal 62 and transmission range switch connector B-110 terminal 5.
Q: Is the harness wire in good condition?
YES: Go to Step 5.
NO: Repair or replace the harness wire.
STEP 34. 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 35.
NO: Replace the transmission range switch.
STEP 35. Check transmission range switch connector B-110 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. Measure the transmission range switch output voltage at PCM connector B-21 by using check harness special tool MB991923.
1. Disconnect all the connectors from the PCM.
2. Connect special tool MB991923 (check harness) between the PCM and the body-side harness connector.
3. Turn the ignition switch to the "ON" position.
4. Move the selector lever to the "2" position.
5. Measure the voltage between terminal 75 and ground.
^ The voltage should measure battery positive voltage.
6. 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 37.
STEP 37. Check PCM connector B-21 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 38.
NO: Repair or replace the damaged components.
STEP 38. Check harness for open circuit or short circuit to ground between PCM connector B-21 terminal 75 and transmission range switch connector B-110 terminal 2.
Q: Is the harness wire in good condition?
YES: Go to Step 5.
NO: Repair or replace the harness wire.
STEP 39. 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 40.
NO: Replace the transmission range switch.
STEP 40. Check transmission range switch connector B-110 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. Measure the transmission range switch output voltage at PCM connector B-21 by using check harness special tool MB991923.
1. Disconnect all the connectors from the PCM.
2. Connect special tool MB991923 (check harness) between the PCM and the body-side harness connector.
3. Turn the ignition switch to the "ON" position.
4. Move the selector lever to the "L" position.
5. Measure the voltage between terminal 72 and ground.
^ The voltage should measure battery positive voltage.
6. 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 42.
STEP 42. Check PCM connector B-21 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 43.
NO: Repair or replace the damaged components.
STEP 43. Check harness for open circuit or short circuit to ground between PCM connector B-21 terminal 72 and transmission range switch connector B-110 terminal 6.
Q: Is the harness wire in good condition?
YES: Go to Step 5.
NO: Repair or replace the harness wire.
STEP 44. Check PCM connector B-20 and shift switch assembly connector C-20 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 45.
NO: Repair or replace the damaged components.
STEP 45. Check harness for short circuit to ground between PCM connector B-20 terminal 39 and shift switch assembly connector C-20 terminal 3.
Q: Is the harness wire in good condition?
YES: Go to Step 5.
NO: Repair or replace the harness wire.