Mustang V6-3.8L VIN 4 (1998)
Transmission Position Switch/Sensor: Testing and Inspection
INTRODUCTION
The Transmission Tester and TR Testing Cable "E" 418-F107 (007-00111) or equivalent with Digital TR Sensor Overlay 007-00131 or equivalent
allows a technician to test the digital TR sensor independent of vehicle electronics. Digital TR sensor testing is divided into four steps:
1. Preliminary diagnosis and testing.
2. Installing the Transmission Tester and TR Testing Cable " E" 418-F107 (007-00111) with Digital TR Sensor Overlay 007-00131 or equivalent.
3. Testing the digital Transmission Range (TR) sensor.
4. Testing the park/neutral, backup and optional circuits.
PRELIMINARY TESTING AND DIAGNOSIS
Before any diagnostic testing is done on a vehicle some preliminary checks must be performed. Be sure to write down any findings, especially any
DTCs, for future reference.
1. Know and understand customer's concern.
2. Verify that digital TR sensor is properly adjusted in NEUTRAL.
3. Verify customer concern:
^
Upshift
^
Downshift
^
Coasting
^
Engagement
If concern involves noise or vibration, does it relate to any of the following?
^
Rpm
^
Vehicle speed
^
Shift
^
Gear
^
Range
^
Temperature
4. Vehicle must be at normal operating temperature.
5. Check transmission fluid level and condition.
6. Check for the following items:
^
Vehicle modifications
^
Electronic add-on items
^
Leaks
^
Linkage adjustments
7. Check TSBs for related information.
8. Perform complete On-Board Diagnostics (OBD) for both KOEO and KOER.
9. Record all DTCs.
10. Repair all non-transmission DTCs.
INSTALLATION PROCEDURES
Installing the Transmission Tester and TR Testing Cable "E" 418-107 (007-00111) or equivalent with Digital TR Sensor Overlay 007-00131 or
equivalent at the transmission connector allows separation of the digital TR 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 Digital TR Sensor Diagnosis follow Pinpoint Test D.
2. Disconnect vehicle harness at digital transmission TR sensor.
3. Set the two-way switch in the down position. (This switch will stay in the same position for all digital TR sensor testing.)
