Ranger 2WD V6-245 4.0L VIN X SFI (1997)
Transmission Position Switch/Sensor: Component Tests and General Diagnostics
Introduction
The Rotunda Transmission Tester 007-00130 (part of Rotunda Transmission Tester Kit), TR Testing Cable "E" 007-00111 and Digital TR Sensor
Overlay 007-00131 or equivalent allows a technician to test the DTR sensor independent of vehicle electronics. DTR sensor testing is divided into four
steps:
1. Preliminary diagnosis and testing.
2. Installing the Rotunda Transmission Tester 007-00130 (part of Rotunda Transmission Tester Kit), TR Testing cable "E" (007-00111) and Digital
TR Overlay or equivalent.
3. Testing the digital transmission range (DTR) sensor.
4. Testing the park/neutral, backup and optional circuits.
Equipment Installation Procedures
Installing the Rotunda Transmission Tester 007-00130 (part of Rotunda Transmission Tester Kit) and TR Testing Cable "E" 007-00111 and Digital TR
Sensor Overlay 007-00131 at the transmission connector allows separation of the DTR sensor electronics from the vehicle electronics.
Testing may cause additional fault codes to be set. Therefore, it is important that all DTCs are erased whenever repairs are made. To verify elimination
of all codes, rerun OBD test.
1. For proper DTR sensor diagnosis, follow Pinpoint Test D.
2. Disconnect vehicle harness at transmission DTR sensor.
3. Set the two-way switch in the down position. (This switch will stay in the same position for all DTR sensor testing.)
4. Attach the Digital TR Sensor Overlay 007-00131 to the transmission tester.
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Affixing the overlay will immobilize the two-way switch (set in Step 2) so it cannot be accidentally moved to an incorrect setting during
testing.
