Electronic/Powertrain Control Module (ECM/PCM)

ECM Wiring Diagram, Part 1 Of 3:

YF16 = MAT SIGNAL
BB5 = MAT, MAP GROUND
YF15 = MAP SIGNAL
BA4 = +5 VOLT REFERENCE
YF14 = A/C PRESSURE SIGNAL
BA5 = +5 VOLT REFERENCE
YF13 = TPS SIGNAL
BB6 = TPS,CTS,A/C PRESSURE GROUND
YE16 = CTS SIGNAL
YE14 = OXYGEN SENSOR SIGNAL
YE15 = OXYGEN SENSOR GROUND
YF9 = KNOCK SIGNAL
BB1 = BATTERY
BC16 = BATTERY
BD13 = P/S PRESSURE SIGNAL (PSPS)
BD16 = P/N SWITCH
BA12 = GROUND
BD1 = GROUND
BA11 = FUEL PUMP CONTROL
BC12 = INJECTOR DRIVER 1,4
BC10 = INJECTOR DRIVER 2,3
BD5 = PEAK AND HOLD ENABLE JUMPER 1,4
BD6 = PEAK AND HOLD ENABLE JUMPER 1,4
BC13 = PEAK AND HOLD ENABLE JUMPER 2,3
BC15 = PEAK AND HOLD ENABLE JUMPER 2,3

ECM Wiring Diagram, Part 2 Of 3:

YE5 = IAC COIL "B" HI
YE6 = IAC COIL "B" LO
YE3 = IAC COIL "A" HI
YE4 = IAC COIL "A" LO
BA6 = IGNITION
YF1 = CCP DRIVER
YF2 = A/C CLUTCH ENABLE
BC9 = A/C REQUEST
BC3 = NON A/C PROGRAM (FOR NON-A/C CARS)
YE8 = FAN DRIVER
YE7 = SERVICE ENGINE SOON
YE12 = ALDL DIAGNOSTIC ENABLE
BA8 = SERIAL DATA

ECM Wiring Diagram, Part 3 Of 3:

BB10 = VSS HI
BB9 = VSS LO
BB11 = 4000 P/MI SPEEDO/ODO
BD9 = IGNITION LO REFERENCE
BD8 = 2X
BC5 = 1X
BC8 = EST
BC7 = BYPASS
BD15 = 3RD GEAR SWITCH (AUTO)
BD4 = 2ND GEAR SWITCH (AUTO)
YF4 = UPSHIFT LIGHT (MAN.)
YF4 = TORQUE CONVERTER (AUTO)
BC4 = BRAKE SIGNAL