Electronic/Powertrain Control Module (ECM/PCM)

ECM Wiring Diagram (1 Of 4):

BA4 = 5 VOLT REFERENCE
GF15 = MAP SIGNAL
BB5 = SENSOR GROUND
GF16 = IAT SIGNAL
BA5 = 5 VOLT REFERENCE
GF13 = TPS SIGNAL
BB6 = SENSOR GROUND
GF14 = A/C PRESSURE SIGNAL
GE16 = CTS SIGNAL
GE14 = 02 SIGNAL
GE15 = 02 GROUND
BB9 = VSS "LOW"
BB10 = VSS "HIGH"
BB11 = 4000 P/MI SPEEDO/ODO
GF9 = ESC SIGNAL

ECM Wiring Diagram (2 Of 4):

GE8 = COOLANT FAN CONTROL
GF2 = A/C CLUTCH CONTROL
BC9 = A/C REQUEST
BC7 = BYPASS
BC8 = EST
BD8 = 2X REF "HI"
BC5 = 1X REF "LO"
BD9 = IGN. REF "LO"

ECM Wiring Diagram (3 Of 4):

BA6 = IGNITION FEED
BB1 = BATT
BC16 = BATT
BA12 = ECM GROUND
BD1 = ECM GROUND
BA11 = FUEL PUMP RELAY
BC12 = INJECTOR DRIVER 1,4
BC10 = INJECTOR DRIVER 2,3
BD5 = PEAK & HOLD
BD6 = ENABLE JUMPER 1,4
BC13 = PEAK & HOLD
BC15 = ENABLE JUMPER 2,3
GE12 = ALDL DIAGNOSTIC ENABLE
BA8 = ALDL SERIAL DATA

ECM Wiring Diagram (4 Of 4):

GF4 = (M/T SHIFT LIGHT)
GF1 = CONTROLLED CANISTER PURGE
GE3 = IAC "A" HIGH
GE4 = IAC "A" LOW
GE5 = IAC "B" HIGH
GE6 = IAC "B" LOW
GE7 = "SERVICE ENGINE SOON" LIGHT