Electronic/Powertrain Control Module (ECM/PCM)

Part 1 of 4

PIN # - CIRCUIT

A8 - Serial Data
A9 - Diagnostic Test
A12 - System Ground
D10 - System Ground
D3 - System Ground
D7 - Oxygen Sensor Signal
D6 - Oxygen Sensor Ground
C12 - MAT Sensor Signal
C14 - 5 Volt Reference
C13 - TPS Signal
D2 - 5 Volt Return
C10 - Coolant Temp Signal
D4 - EST
B5 - Reference
D5 - By-Pass
B3 - Distributor Ground







Part 2 of 4

PIN # - CIRCUIT

C5 - IAC Coil "A" HI
C6 - IAC Coil "A" LO
C4 - IAC Coil "B" HI
C3 - IAC Coil "B" LO
B10 - Park Neutral Switch (A/T)
B7 - Spark Retart Signal (ESC)
A6 - 12 Volt Ignition
A10 - Vehicle Speed Signal
B8 - A/C Signal
D15 - Injector Drive
D16 - Injector Drive







Part 3 of 4

PIN # - CIRCUIT

B1 - 12 Volts
C16 - 12 Volts
A1 - Fuel Pump Relay Drive (12V)
A12 - System Ground
B2 - Fuel Pump Signal
D3 - System Grd.
D1 - System Grd.
A11 - Analog Ground (MAF)
B12 - MAF Signal Input
D12 - Burn-Off Control







Part 4 of 4

PIN # - CIRCUIT

A5 - Service Engine Soon Light Control
C8 - 4th Gear Signal (A/T)
A7 - A/T TCC Control
A7 - M/T Shift Light Control
A3 - Cannister Purge Control
A4 - EGR Control
C15 - EGR Diagnostic Temp Switch
C2 - Solenoid Drive (AIR Control)
A2 - Solenoid Drive (AIR Switch)
C1 - Cooling Fan Control
D11 - Fan Request Signal