Pinpoint Test J : Transmission Range Sensor: Notes
WARNING: This page is about a different variant/trim than selected.
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-6F35 for schematic and connector information.
Normal Operation and Fault Conditions
The TR sensor provides a fixed frequency duty cycle to the TCM for each of the manual control lever positions (PARK, REVERSE, NEUTRAL, DRIVE and LOW). The TCM uses the TR sensor signal for LPC, shift scheduling and TCC operation. The TCM transmits TR data on the HS-CAN to the PCM and BCM for engine start and reverse lamp operation.
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 | TR Sensor Circuit Intermittent | TR sensor circuit intermittent. |
| 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
- TCM