Pinpoint Test V: TR Sensor: Notes
Diagnostic Overview
Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Service Information for information about these practices.
Refer to Transmission Controls - 6F50/6F55 for schematic and connector information.
Normal Operation and Fault Conditions
The TR sensor is a 6-pin connector located inside the transmission at the manual control lever. The TR sensor sends a signal to the PCM to start the vehicle when the manual control lever is in PARK or NEUTRAL. The TR sensor contains 4 switches that are monitored by the PCM to determine the manual control lever position.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| P0706 | Transmission Range Sensor "A" Circuit Range/Performance | Mechanical or electrical fault. Input from the TR sensor did not change or is intermittent. |
| P0707 | Transmission Range Sensor "A" Circuit Low | TR sensor circuit open or short to ground. |
| P0708 | Transmission Range Sensor "A" Circuit High | TR sensor circuit open. |
| P0709 | Transmission Range Sensor "A" Circuit Intermittent | TR sensor circuit open or short to ground. |
| P1702 | Transmission Range Sensor Circuit Intermittent | TR sensor circuit open or short to ground. |
| P1705 | Transmission Range Circuit Not Indicating Park/Neutral During Self Test | TR sensor misaligned or in wrong position during the self-test. |
| P1921 | Transmission Range Signal | The PCM has detected a TR signal duty cycle out of range. |
Possible Sources
- Connectors damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals
- TR sensor
- PCM