Pinpoint Test E : Transmission Range Sensor Fault
WARNING: This page is about a different car, the 2018 Ford Focus. However, it is still accessible from the selected car via links, so may be relevant.
- Refer to Transmission Controls - DPS6
for schematic and connector information.
Normal Operation and Fault Conditions
The TR sensor monitors the position of the manual control lever shaft. The TR sensor is mounted on the transmission. The TR sensor allows the vehicle to start in PARK and NEUTRAL. The TR sensor output signal is linear over the measurement range and the TCM receives this signal verifying the selector lever position.
The TR sensor inputs are used for selector lever position, starter inhibit relay and reversing lamps.
DTC Fault Trigger Conditions
DTC Description Fault Trigger Condition TCM P0706:00 Transmission Range Sensor "A" Circuit Range/Performance: No Sub Type Information TR sensor A frequency out of range (200-300 Hz). DTC does not set for circuits that are open, shorted to ground or shorted to power. TCM P0707:00 Transmission Range Sensor "A" Circuit Low: No Sub Type Information TR sensor A duty cycle out of range low, below park minimum duty cycle. TCM P0708:00 Transmission Range Sensor "A" Circuit High: No Sub Type Information TR sensor A duty cycle out of range high, below low maximum duty cycle. TCM P0709:00 Transmission Range Sensor "A" Circuit Intermittent: No Sub Type Information TR sensor intermittent park or neutral signal during pre-crank test. TCM P2801:00 Transmission Range Sensor "B" Circuit Range/Performance: No Sub Type Information TR sensor B frequency out of range (200-300 Hz). DTC does not set for circuits that are open, shorted to ground or shorted to power. TCM P2802:00 Transmission Range Sensor "B" Circuit Low: No Sub Type Information TR sensor B duty cycle out of range low, below low minimum duty cycle. TCM P2803:00 Transmission Range Sensor "B" Circuit High: No Sub Type Information TR sensor B duty cycle out of range high, below park maximum duty cycle. TCM P2804:00 Transmission Range Sensor "B" Circuit Intermittent: No Sub Type Information This DTC sets with P2801, P2802 and/or P2803. Used to light the wrench light. TCM P2805:00 Transmission Range Sensor "A"/ "B" Correlation: No Sub Type Information TR sensor A and B sum must be 100 +/- 2x sensor tolerance. If both sensors are in-range and no other DTCs are set, but the sum fails to add up to 100%, this DTC will set. Possible Sources
- Connectors damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals
- TR sensor
- TCM
- TCM ground
- E1 READ AND RECORD ALL DTCS
- Using the diagnostic scan tool, retrieve all DTCs.
Are TR sensor DTCs present?
Yes GO to E2 No CARRY OUT the TR Sensor Adaptive Learning procedure. REFER to: Transmission Control Module (TCM) Adaptive Learning . - E2 CONFIRM THE TR SENSOR AND TCM CONNECTORS ARE LATCHED
- Ignition OFF.
- PUSH, PULL, CLICK C167 to confirm the TR sensor is connected.
- VERIFY C1750A is connected and the lock lever is in the lock position.
- VERIFY C1750B is connected and the lock lever is in the lock position.
Are the TR sensor and TCM connectors fully connected?
Yes GO to E3 No CONNECT the connectors and LOCK the lock levers on the TR sensor and the TCM. CLEAR the DTCs. Using the diagnostic scan tool, CARRY OUT the KOER self-test. If DTCs return, GO to E3 - E3 CHECK THE TR (TRANSMISSION RANGE) SENSOR POWER CIRCUIT FOR VOLTAGE
- Ignition OFF.
- Disconnect TR Sensor C167 .
- Inspect the connector for damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals.
- Ignition ON.
- Measure:
Positive Lead Measurement / Action Negative Lead C167-3 Ground
Is the voltage greater than 4.5 volts?
Yes GO to E6 No GO to E4 - E4 CHECK THE TR (TRANSMISSION RANGE) SENSOR POWER CIRCUIT FOR AN OPEN
- Ignition OFF.
- Disconnect TCM C1750B .
- Inspect the connector for damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals.
Is the resistance less than 3 ohms?
Yes GO to E5 No REPAIR the circuit. - E5 CHECK THE TR (TRANSMISSION RANGE) SENSOR POWER CIRCUIT FOR A SHORT TO GROUND
- Measure:
Positive Lead Measurement / Action Negative Lead C167-3 Ground
Is the resistance greater than 10, 000 ohms?
Yes INSTALL a new TCM. REFER to: Transmission Control Module (TCM) . PROGRAM the TCM with the latest calibration, REFER to: Transmission Control Module (TCM) Adaptive Learning . No REPAIR the circuit. - Measure:
- E6 CHECK THE TR (TRANSMISSION RANGE) SENSOR GROUND CIRCUIT
- Ignition ON.
Is the voltage greater than 4.5 volts?
Yes GO to E8 No GO to E7 - E7 CHECK THE TR (TRANSMISSION RANGE) SENSOR GROUND CIRCUIT FOR AN OPEN
- Ignition OFF.
- Disconnect TCM C1750B .
- Inspect the connector for damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals.
Is the resistance less than 3 ohms?
Yes INSTALL a new TCM. REFER to: Transmission Control Module (TCM) . PROGRAM the TCM with the latest calibration, REFER to: Transmission Control Module (TCM) Adaptive Learning . No REPAIR the circuit. - E8 CHECK THE TR (TRANSMISSION RANGE) SENSOR SIGNAL CIRCUITS FOR AN OPEN
- Ignition OFF.
- Disconnect TCM C1750B .
- Inspect the connector for damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals.
Are the resistances less than 3 ohms?
Yes GO to E9 No REPAIR the circuit. - E9 CHECK THE TR (TRANSMISSION RANGE) SENSOR CIRCUITS FOR A SHORT TO GROUND
Are the resistances greater than 10, 000 ohms?
Yes INSTALL a new TR sensor. REFER to: Transmission Range (TR) Sensor . CARRY OUT the TR Sensor Adaptive Learning procedure. REFER to: Transmission Control Module (TCM) Adaptive Learning . No REPAIR the circuit.