307-01-1 Automatic Transaxle/Transmission 307-01-1 DIAGNOSIS AND TESTING Transmission Connector Layouts Connector Reference and Terminal Readings Powertrain Control module (PCM) 1 Pressure control solenoid A (PC A) 2 Pressure control solenoid B (PC B) 3 Output shaft speed (OSS) sensor signal input 4 Intermediate shaft speed (ISS) sensor signal input 10 Pressure control solenoid C (PC C) 15 Turbine shaft speed (TSS) sensor signal input 16 Digital transmission range sensor TR1 to PCM 17 Digital transmission range sensor TR2 to PCM 27 Digital transmission range sensor TR3A to PCM 28 Digital transmission range sensor TR4 to PCM 29 Transmission fluid temperature (TFT) sensor 41 Signal return 42 Shift solenoid A (SSA) 43 Shift solenoid B (SSB) 44 Shift solenoid C (SSC) 45 Shift solenoid D (SSD) 46 Torque converter clutch (TCC) solenoid Copyright 2004, Ford Motor Company Last updated: 07/29/2004
307-01-2 Automatic Transaxle/Transmission 307-01-2 Transmission Vehicle Harness 1 Pressure control solenoid B (PC B) 2 Transmission fluid temperature (TFT) sensor input 3 Solenoid power 4 Pressure control solenoid C (PC C) 5 Shift solenoid D (SSD) 6 Shift solenoid C (SSC) 11 Pressure control solenoid A (PC A) 1 14 Torque converter clutch (TCC) solenoid 15 Shift solenoid B (SSB) 16 Shift solenoid A (SSA) Digital Transmission Range (TR) Sensor 3 Digital transmission range (TR) sensor TR3A 4 Digital transmission range (TR) sensor TR1 5 Digital transmission range (TR) sensor TR2 6 Digital transmission range (TR) sensor TR4
307-01-3 Automatic Transaxle/Transmission 307-01-3 7 Ground 8 Neutral switch sense input 9 Fused power feed 10 Starter solenoid central power 11 Reverse lamps 12 Starter relay (overload protected) Turbine Shaft Speed (TSS) Sensor 1 Turbine shaft speed (TSS) sensor signal Output Shaft Speed (OSS) Sensor 1 Output shaft speed (OSS) sensor signal
307-01-4 Automatic Transaxle/Transmission 307-01-4 Intermediate Shaft Speed Sensor Harness Connector 1 Intermediate shaft speed sensor signal Digital Transmission Range (TR) Sensor Diagnosis Chart Selector Position Shift Lever Indicator PID: TR V PID: TR D (volts) TR3A (PCM pin 64 to signal TR4 TR3A TR2 TR1 return) Park P 0 0 0 0 0.0 volts Reverse R 1 1 0 0 1.3-1.8 volts Neutral N 0 1 1 0 1.3-1.8 volts Overdrive D 1 1 1 1 1.3-1.8 volts Manual 3 3 1 0 1 0 0.0 volts
307-01-5 Automatic Transaxle/Transmission 307-01-5 Digital Transmission Range (TR) Sensor Diagnosis Chart (Continued) Selector Position Shift Lever Indicator PID: TR V PID: TR D (volts) TR3A (PCM pin 64 to signal TR4 TR3A TR2 TR1 return) Manual 2 2 1 0 0 1 0.0 volts Manual 1 Man 1 0 0 1 1 0.0 volts A. TR V is the voltage at the PCM pin 64 (TR3A Circuit) to signal return. B. TR D: 1= Open digital TR switch, 0= Closed digital TR switch. C. EEC-V Control System Breakout Box Readings: Taken from PCM signal pins for TR1, TR2, TR3A and TR4 to signal return. Voltages for TR1, TR2 and TR4: 0 = 0.0 volts. 1 = 9.0-14.0 volts. Voltage for TR3A: 0 = 0.0 volts. 1 = 1.3-1.8 volts. Wiggle Test Information for Open/Shorts A. TR4, TR3A, TR2 and TR1 are all closed in PARK. PARK is a good position to check for intermittent open circuits (with diagnostic tool monitoring TR D). B. 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.