Ford 2003 Mustang Workshop Manual page 2354

harness is wiggled, the sensor is tapped, or the
vehicle driven?
C6 CHECK DIGITAL TRANSMISSION RANGE SENSOR
OPERATION
Disconnect: Digital TR Sensor .
CAUTION: Do not pry on connector. This will
damage the connector and result in a transmission
concern.
Connect: TR-E Cable to Transmission Tester.
Connect: TR-E Cable to Digital TR Sensor.
Place the Digital TR Overlay onto Transmission Tester.
Carry out Sensor Test as instructed on the Digital TR
Overlay.
Does the status lamp on the tester TRS-E cable
match the selected gear positions?
C7 CHECK PCM HARNESS CIRCUITS FOR OPENS
Key in OFF position.
Disconnect: Powertrain Control Module (PCM) .
Inspect for damaged or pushed-out pins, corrosion or
loose wires.
Disconnect: Digital TR Sensor.
CAUTION: Do not pry the connector. This will
damage the connector and result in a transmission
concern.
Disconnect the digital TR sensor connector.
Install the EEC-V Control System Breakout Box.
Measure the resistance between the PCM test pin 91 at
the EEC-V Control System Breakout Box and signal
return circuit pin 2 at digital TR sensor connector
harness side.
For vehicles equipped with a 4.6L engine measure the
resistance between the PCM test pin 34 at the EEC-V
Control System Breakout Box and TR1 circuit pin 4 at
digital TR sensor connector harness side.
For vehicles equipped with a 3.8L engine measure the
resistance between the PCM test pin 3 at the EEC-V
Yes
Concern is not in the digital TR
sensor, GO to C7 .
No
INSTALL a new digital TR
sensor. CLEAR DTCs and
REPEAT OBD Tests.
Yes
GO to C8 .
No
REPAIR open circuit(s).
RECONNECT all components.
CLEAR DTCs. REPEAT OBD
Tests.