Part 2

DTC P1770 (P0705): Transmission Range Switch System (Open Circuit) (Continued)

STEP 7. Check transmission range switch connector B-113 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 8.

NO Repair or replace the damaged components. Harness Connector Inspection.

STEP 8. Measure the transmission range switch output voltage at PCM connector B-20 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 "P" position.





(5)Measure the voltage between terminal 67 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 9.

STEP 9. Check PCM connector B-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 10.

NO Repair or replace the damaged components. Harness Connector Inspection.

STEP 10. Check harness for open circuit or short circuit to ground between PCM connector B-20 terminal 67 and transmission range switch connector B-113 terminal 3.









Q. Is the harness wire in good condition?

YES Go to Step 5.

NO Repair or replace the harness wire.

STEP 11. Check PCM connector B-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 5.

NO Repair or replace the damaged components. Harness Connector Inspection.

STEP 12. Check the transmission range switch.









Measure the resistance between the terminals for each transmission range as indicated in the table below.





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 13.

NO Replace the transmission range switch. Transaxle Disassembly and Assembly Transaxle [4A/T] or Transaxle [5A/T].

STEP 13. Check transmission range switch connector B-113 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 14.

NO Repair or replace the damaged components. Harness Connector Inspection.

STEP 14. Measure the transmission range switch output voltage at PCM connector B-20 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 "R" position.





(5)Measure the voltage between terminal 61 and ground.

- The voltage should measure below 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 15.

STEP 15. Check PCM connector B-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 16.

NO Repair or replace the damaged components. Harness Connector Inspection.

STEP 16. Check harness for open circuit or short circuit to ground between PCM connector B-20 terminal 61 and transmission range switch connector B-113 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 below.





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. Transaxle Disassembly and Assembly Transaxle [4A/T] or Transaxle [5A/T].

STEP 18. Check transmission range switch connector B-113 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. Harness Connector Inspection.

STEP 19. Measure the transmission range switch output voltage at PCM connector B-20 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-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 21.

NO Repair or replace the damaged components. Harness Connector Inspection.

STEP 21. Check harness for open circuit or short circuit to ground between PCM connector B-20 terminal 77 and transmission range switch connector B-113 terminal 4.









Q. Is the harness wire in good condition?

YES Go to Step 5.

NO Repair or replace the harness wire.