Electronic/Powertrain Control Module (ECM/PCM)

ECM Wiring Diagram (Part 1 Of 3):

GE12 = DIAGNOSTIC TEST
BA12 = SYSTEM GROUND
BD6 = INJECTOR DRIVER GROUND
BD7 = INJECTOR DRIVER GROUND
BA9 = SERIAL DATA
BD1 = SYSTEM GROUND
GE15 = OXYGEN SENSOR GROUND
GE14 = OXYGEN SENSOR SIGNAL
BB9 = VSS (LOW)
BB10 = VSS (HIGH)
BB11 = VSS OUTPUT (4000 P/PER/MILE)
BD13 = POWER STEERING PRESSURE SIGNAL
GF16 = IAT SIGNAL
BB5 = SENSOR GROUND
GF13 = TPS SIGNAL
BA5 = 5V REFERENCE
BA4 = 5V REFERENCE
GF15 = MAP SIGNAL
BB6 = SENSOR GROUND
GE16 = COOLANT TEMP. SENSOR
GF9 = KNOCK SIGNAL

ECM Wiring Diagram (Part 2 Of 3):

GE3 = IAC COIL "A" HI
GE4 = IAC COIL "A" LO
GE5 = IAC COIL "B" HI
GE6 = IAC COIL "B" LO
BD16 = PARK NEUTRAL SWITCH (A/T)
BA6 = IGNITION
BC11 = INJECTOR DRIVER
BC12 = INJECTOR DRIVER
BA12 = SYSTEM GROUND
BC7 = BYPASS
BC8 = EST
BD8 = REFERENCE
BD9 = GROUND
BB1 = B+
BC16 = B+
BA11 = FUEL PUMP RELAY DRIVE (B+ FOR 2 SECONDS)
BA12 = SYSTEM GROUND
GE1 = FUEL PUMP SIGNAL (PPSW)

ECM Wiring Diagram (Part 3 Of 3):

GE7 = "SERVICE ENGINE SOON" LIGHT CONTROL
BD4 = 2ND GEAR SIGNAL
BD15 = 3RD GEAR SIGNAL
GF6 = TCC CONTROL
GF7 = CANISTER PURGE
GF5 = EGR SOLENOID #3
GF4 = EGR SOLENOID #2
GE9 = EGR SOLENOID #1
BB5 = SENSOR GROUND
GF14 = A/C PRESSURE SIGNAL
BA4 = 5V REFERENCE
BC9 = A/C REQUEST
GF1 = A/C RELAY CONTROL
GE8 = COOLING FAN CONTROL