Mountaineer 2WD V6-4.0L VIN K (2007)
Transmission Position Switch/Sensor: Testing and Inspection
Digital Transmission Range (TR) Sensor Diagnosis Chart
Digital Transmission Range (TR) Sensor Diagnosis Chart
Wiggle Test Information for Open/Shorts
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TR4, TR3A, TR2 and TR1 are all closed in PARK. PARK is a good position to check for intermittent open circuits (with scan tool monitoring
TRD).
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TR4, TR3A, TR2 and TR1 are all open in OVERDRIVE, so OVERDRIVE is a good position to check for shorts to ground. To determine the
shorted components while observing TRD, unplug the TR and determine if the short goes away. If the short is still present unplug the transmission
harness and determine if the short goes away. If the short is still present, then the short is in the PCM or vehicle harness. Remove the suspect
circuit(s) wire terminal from the PCM connector. If the short is still present, then the PCM has an internal failure, otherwise the failure is in the
vehicle harness.
