Electronic/Powertrain Control Module (ECM/PCM)

ECM Wiring Diagram (Part 1 of 3):

A8 = SERIAL DATA.
A9 = DIAGNOSTIC TEST.
A12 = SYSTEM GROUND.
D1 = SYSTEM GROUND.
C9 = CRANK SIGNAL.
D7 = OXYGEN SENSOR SIGNAL.
D6 = OXYGEN SENSOR GROUND.
A11 = SENSOR GROUND.
C11 = MAP SIGNAL.
C14 = +5V REFERENCE.
C13 = TPS SIGNAL.
D2 = SENSOR GROUND.
C10 = COOLANT TEMPERATURE SENSOR.
B8 = A/C SIGNAL.
A2 = A/C RELAY CONTROL.

ECM Wiring Diagram (Part 2 of 3):

C5 = IAC "A" HI.
C6 = IAC "A" LO.
C4 = IAC "B" HI.
C3 = IAC "B" LO.
C12 = E-CELL.
A8 = IGNITION.
D16 = INJECTOR DRIVER.
D14 = INJECTOR DRIVER.
D4 = EST.
B5 = REFERENCE.
D5 = BYPASS.
B3 = REFERENCE LOW.
B1 = 12 VOLTS.
C16 = 12 VOLTS.
A1 = FUEL PUMP RELAY DRIVE (12).
B2 = FUEL PUMP SIGNAL.

ECM Wiring Diagram (Part 3 of 3):

A5 = SERVICE ENGINE SOON LIGHT CONTROL.
A7 = TCC CONTROL (A/T).
A7 = SHIFT LIGHT (M/T).
C2 = EAC SOLENOID.
A10 = VEHICLE SPEED SENSOR.
B10 = PARK NEUTRAL SWITCH (A/T)(12V).
B7 = KNOCK RETARD SIGNAL (ESC).
A6 = 12 VOLT SIGNAL.
A4 = EGR CONTROL.