Transmission Connector Layouts

Transmission Connector Layouts


Connector Reference and Terminal Readings



PCM - C175T











Transmission Vehicle Harness - C199









Transmission Internal Harness











Transmission Range (TR) Sensor - C167











Turbine Shaft Speed (TSS) Sensor - C143











Output Shaft Speed (OSS) Sensor - C193











Intermediate Shaft Speed Sensor Harness - C164









Transmission Range (TR) Sensor Diagnosis Chart





A. TR3_V is the voltage at the PCM C175T-27 circuit VET55(BN) to signal return.
- Voltages for TR1, TR2 and TR4:
- 0 = 0.0 volt.
- 1 = 9.0-14.0 volts.
- Voltage for TR3A:
- 0 = 0.0 volt.
- 1 = 1.3-1.8 volts.

Wiggle Test Information for Open/Shorts
A. TR4, TR3, TR2 and TR1 are all closed in PARK. PARK is a good position to check for intermittent open circuits.
B. TR4, TR3, TR2 and TR1 are all open in (D), so (D) is a good position to check for shorts to ground. To determine the shorted components while observing the TR PIDs, unplug the TR sensor C167 and see if the short goes away. If the short is still present, unplug the transmission C199 and see 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 PCM C175T. If the short is still present, then the PCM has an internal failure; otherwise the failure is in the vehicle harness.