5R55S - Automatic Transaxle/Transmission

Transmission Connector Layouts

Connector Reference

150-Pin PCM Transmission - C175T

150-Pin PCM Transmission - C175T (Part 1):

150-Pin PCM Transmission - C175T (Part 2):

Transmission Vehicle Harness - C168

Transmission Vehicle Harness - C168:

Digital Transmission Range (TR) Sensor - C167

Digital Transmission Range (TR) Sensor - C167:

Turbine Shaft Speed (TSS) Sensor - C143

Turbine Shaft Speed (TSS) Sensor - C143:

Output Shaft Speed (OSS) Sensor - C193

Output Shaft Speed (OSS) Sensor - C193:

Intermediate Shaft Speed Sensor Harness Connector - C164

Intermediate Shaft Speed Sensor Harness Connector - C164:

Digital Transmission Range (TR) Sensor Diagnosis Chart

Digital Transmission Range (TR) Sensor Diagnosis Chart (Part 1):

Digital Transmission Range (TR) Sensor Diagnosis Chart (Part 2):

Wiggle Test Information for Open/Shorts
^ TR4, TR3A, TR2 and TR1 are all closed in PARK. PARK is a good position to check for intermittent open circuits (with scan tool monitoring TR_D).
^ TR4, TR3A, TR2 and TR1 are all open in OVERDRIVE, so OVERDRIVE is a good position to check for shorts to ground. To determine the shorted components while observing TR_D, unplug the TR and see if the short goes away. If the short is still present unplug the transmission harness 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 the PCM connector. If the short is still present, then the PCM has an internal failure, otherwise the failure is in the vehicle harness.