Part 3

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

STEP 22. 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 23.

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

STEP 23. 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 24.

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

STEP 24. 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 "D" position.





(5)Measure the voltage between terminal 73 and ground.

- The voltage should equal battery voltage (approximately12 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-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 26.

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

STEP 26. Check harness for open circuit or short circuit to ground between PCM connector B-20 terminal 73 and transmission range switch connector B-113 terminal 1.









Q. Is the harness wire in good condition?

YES Go to Step 27.

NO Repair or replace the harness wire.

STEP 27. Check intermediate connector A-15 and shift switch assembly connector C-17 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. Harness Connector Inspection.

STEP 28. Check harness for short circuit to ground between transmission range switch connector B-113 terminal 1 and shift switch assembly connector C-17 terminal 1.









Q. Is the harness wire in good condition?

YES Go to Step 5.

NO Repair or replace the harness wire.

STEP 29. Check the shift switch assembly. Refer to Service and Repair, Transaxle Control.

Q. Is the switch operating properly?

YES Go to Step 30 .
NO Replace the shift switch assembly. Refer to Service and Repair, Transaxle Control.
STEP 30. Check PCM connector B-19 and shift switch assembly connector C-17 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. Harness Connector Inspection.

STEP 31 . Check harness for short circuit to ground between PCM connector B-19 terminal 39 and shift switch assembly connector C-17 terminal 6.









Q. Is the harness wire in good condition?

YES Go to Step 5.

NO Repair or replace the harness wire.