Operation CHARM: Car repair manuals for everyone.

Testing the TR Switch

TESTING THE TR SWITCH
Static testing procedures allow for shop testing of the transaxle in the vehicle or on the bench. Completion of these tests prove out the TR switch electronically.

CAUTION: For resistance checks, be sure that the tester select switch is set to the "MLP SENSOR TEST" position or damage to the ohmmeter may result.

Resistance/Continuity Tests
- Using a digital volt-ohmmeter and the transaxle tester, perform the pinpoint test DTC P1705.

P1705

- Perform repairs as indicated by the pinpoint test. Always retest and road test the vehicle after a repair.

TR Switch Resistance Tests
TR Switch
- Set the ohmmeter to the 1,000 ohm range.
- Connect the positive lead of the ohmmeter to the MLP jack.
- Connect the negative lead of the ohmmeter to the SIGRTN jack.
- Move the selector lever into each range position.
- Record the resistance at each position.




- Refer to the chart for values.
- If out of range, refer to DTC P0712

P0712