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PCM A/T Control System Input and Output

Fig 1: Identifying PCM Connector Terminal Locations
G05455143
PCM CONNECTOR A (31P)

Terminal Number Wire Color Terminal Name Description Signal
A2 YEL/BLK IGP2 (POWER SOURCE) Power source for PCM circuit With ignition switch ON (II): Battery voltage With ignition switch LOCK (0): About 0 V
A3 YEL/BLK IGP1 (POWER SOURCE) Power source for PCM circuit With ignition switch ON (II): Battery voltage With ignition switch LOCK (0): About 0 V
A4 BLK PG2 (POWER GROUND) Ground circuit for the PCM Less than 1.0 V at all times
A5 BLK PG1 (POWER GROUND) Ground circuit for the PCM Less than 1.0 V at all times
A8 BRN/YEL LG2 (LOGIC GROUND) Ground circuit for the PCM Less than 1.0 V at all times
A9 BRN/YEL LG1 (LOGIC GROUND) Ground circuit for the PCM Less than 1.0 Vat all times
A18 BLK/BLU NC(OUTPUT SHAFT (COUNTERSHAFT) SPEED SENSOR) Detects output shaft (countershaft) speed sensor signal With ignition switch ON (II): About 0 V or about 5 V With vehicle moving: About 1.5-3.5 V (pulses)
A20 YEL/BLU VCC2 (SENSOR VOLTAGE) Provide sensor reference voltage With ignition switch ON (II): About 5 V With ignition switch LOCK (0): About 0 V
A21 YEL/RED VCC1 (SENSOR VOLTAGE) Provide sensor reference voltage With ignition switch ON (II): About 5 V With ignition switch LOCK (0): About 0 V
A23 GRN/BLK SG2 (SENSOR GROUND) Sensor ground Less than 1.0 Vat all times
A24 GRN/WHT SG1 (SENSOR GROUND) Sensor ground Less than 1.0 V at all times
A30 RED/GRN MAP (MANIFOLD ABSOLUTE PRESSURE) Detects MAP sensor signal With ignition switch ON (II): About 3 V At idle: About 1.5 V (depending on engine speed)
PCM CONNECTOR B (24P)

Terminal Number Wire Color Terminal Name Description Signal
B12 WHT/BLK EGRP (EXHAUST GAS RECIRCULATION (EGR) VALVE POSITION SENSOR) Detects EGR valve position sensor signal With engine running: About 1.2-3.0 V
B16 PNK EGR (EXHAUST GAS RECIRCULATION (EGR) VALVE) Drives EGR valve With EGR operating: Duty controlled With EGR not operating: About 0 V
Fig 2: Identifying PCM Connector Terminal Locations
G05455144
PCM CONNECTOR C (22P)

Terminal Number Wire Color Terminal Name Description Signal
C1 BRN/WHT LS B (A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE B) Drives A/T clutch pressure control solenoid valve B With ignition switch ON (II): Current controlled
C2 GRN SH C (SHIFT SOLENOID VALVE C) Drives shift solenoid valve C With engine running in R, D (in 3rd and 4th gears), and D3 or S (in 3rd gear): Battery voltage
With engine running in P, N, D (in 1st, 2nd, and 5th gears), D3 or S (in 1st and 2nd gears), 2,1: About 0 V
C4 GRN/RED SH D (SHIFT SOLENOID VALVE D) Drives shift solenoid valve D With engine running in P and R: Battery voltage
With engine running in N: About 0 V
C5 GRN/WHT SH B (SHIFT SOLENOID VALVE B) Drives shift solenoid valve B With engine running in R, D (in 1st, 4th, and 5th gears), D3 or S (in 1st gear), and 1: Battery voltage
With engine running in P, N, D (in 2nd and 3rd gears), D3 or S (in 2nd and 3rd gears), and 2: About 0 V
C6 BLU SH A (SHIFT SOLENOID VALVE A) Drives shift solenoid valve A With engine running in D (in 2nd and 4th gears), D3 or S (in 2nd gear), and 2: Battery voltage
With engine running in P, N, D (in 1st, 3rd, and 5th gears), D3 or S (in 1st and 3rd gears), and 1: About 0 V
C7 BLU/WHT LS C (A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE C) Drives A/T clutch pressure control solenoid valve C With ignition switch ON (II): Current controlled
C9 (7-exposition) RED ATP D3 (TRANSMISSION RANGE SWITCH D3) Detects transmission range switch D3 position signal In D3: About 0 V
In any position other than D3: Battery voltage
C9(5-position) RED ATP S (TRANSMISSION RANGE SWITCH S) Detects transmission range switch S position signal In S: About 0 V
In any position other than S: Battery voltage
PCM CONNECTOR C (22P)

Terminal Number Wire Color Terminal Name Description Signal
C10 BLK/RED 0P3SW (3RD CLUTCH TRANSMISSION) Detects 3rd clutch transmission fluid pressure switch signal With ignition switch ON (II):
  • Without 3rd clutch pressure: About 5 V
  • With 3rd clutch pressure: About 0 V
C11 (7-position) BRN ATP 2-1 (TRANSMISSION RANGE SWITCH 2-1) Detects transmission range switch 2 and 1 position signal In 2 and 1: About 0 V
In any position other than 2 and 1: About 5 V
C12 YEL ATP RVS (TRANSMISSION RANGE SWITCH) Detects transmission range switch RVS signal In R: About 0 V
In any position other than R: Battery voltage
C13 BLU/YEL 0P2SW (2ND CLUTCH TRANSMISSION) Detects 2nd clutch transmission fluid pressure switch signal With ignition switch ON (II):
  • Without 2nd clutch pressure: About 5 V
  • With 2nd clutch pressure: About 0 V
C14 RED/YEL ATFT (ATF TEMPERATURE SENSOR) Detects ATF temperature sensor signal With ignition switch ON (II): 0.2-4.8 V (about 1.8 V at operating temperature, depending on ATF temperature)
C15 RED/BLK LS A (A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE A) Drives A/T clutch pressure control solenoid valve A With ignition switch ON (II): Current controlled
C17 YEL/GRN ATP D (TRANSMISSION RANGE SWITCH D) Detects transmission range switch D signal In D: About 0 V
In any position other than D: Battery voltage
C18 BLU/YEL ATP FWD (TRANSMISSION RANGE SWITCH) Detects transmission range switch FWD signal In D, D3 or S, 2: About 0 V
In any position other than D, D3 or S, 2: Battery voltage
C19 WHT/RED NM (INPUT SHAFT (MAINSHAFT) SPEED SENSOR) Detects input shaft (mainshaft) speed sensor signal With ignition switch ON (II): About 0 V or about 5 V
With engine idling in N: About 1.5-3.5 V (pulses)
C20 RED/BLK ATP N (TRANSMISSION RANGE SWITCH N) Detects transmission range switch N signal In N: About 0 V
In any position other than N: Battery voltage
C21 WHT ATP R (TRANSMISSION RANGE SWITCH R) Detects transmission range switch R signal In R: About 0 V
In any position other than R: Battery voltage
C22 BLK/BLU ATP P (TRANSMISSION RANGE SWITCH P) Detects transmission range switch P signal In P: About 0 V
In any position other than P: Battery voltage
Fig 3: Identifying PCM Connector Terminal Locations
G05455145
PCM CONNECTOR D (17P)

Terminal Number Wire Color Terminal Name Description Signal
D9(5-position) LT GRN/ RED SDNP (PADDLE SHIFTER - (DOWNSHIFT SWITCH)) Detects paddle shifter - (downshift switch) signal With paddle shifter - (downshift switch) pulled: About 0 V
With paddle shifter - (downshift switch) released: Battery voltage
PCM CONNECTOR E (31P)

Terminal Number Wire Color Terminal Name Description Signal
E2 BRN/WHT SLS (SHIFT LOCK SOLENOID) Drives shift lock solenoid With ignition switch ON (II), in P, brake pedal pressed, and accelerator closed: About 0 V
E7 RED/YEL MRLY(PGM-FI MAIN RELAY) Drives PGM-FI main relay 1 (FI-MAIN) Power source for DTC With ignition switch ON (II): About 0 V
With ignition switch LOCK (0): Battery voltage
E9 BLK/YEL IG1 (IGNITION SWITCH) Detects ignition switch signal With ignition switch ON (II): Battery voltage
E11 WHT CAN H (CAN COMMUNICATION SIGNAL HIGH) Sends and receive communication signal With ignition switch ON (II): About 2.5 V (pulse)
E16(5-position) YEL SUPP (PADDLE SHIFTER + (UPSHIFT SWITCH)) Detects paddle shifter + (upshift switch) signal With paddle shifter + (upshift switch) pulled: About 0 V
With paddle shifter + (upshift switch) released: Battery voltage
E22 WHT/BLK BKSW (BRAKE PEDAL POSITION SWITCH) Detects brake pedal position switch signal With brake pedal released: About 0 V
With brake pedal pressed: Battery voltage
E24 RED CAN L (CAN COMMUNICATION SIGNAL LOW) Sends and receive communication signal With ignition switch ON (II): About 2.5 V (pulse)
E29 BRN SCS (SERVICE CHECK SIGNAL) Detects service check signal With the service check signal shorted using HDS: About 0 V
With the service check signal open: About 5V - battery voltage