Engine Control Module (ECM)

The Engine Control Module (ECM) is installed in the front passenger side of the engine compartment, on a bracket attached to the engine bulkhead.

The ECM has the capability of adapting its fuel and ignition control outputs in response to several sensor inputs.

The ECM receives inputs from the following:

• Crankshaft Position (CKP) sensor
• Camshaft position (CMP) sensors (4 off)
• engine coolant temperature (ECT) sensors (2 off)
• Knock sensors (4 off)
• Manifold absolute pressure (MAP) sensor
• Mass air flow and temperature (MAFT) sensors (2 off)
• Manifold absolute pressure and temperature (MAPT) sensor
• Throttle position sensor
• Heated oxygen sensors (4 off)
• Accelerator pedal position (APP) sensor
• Ambient air temperature sensor
• Fuel Rail Pressure and Temperature (FRPT) sensor.

  Refer to: FUEL RAIL PRESSURE AND TEMPERATURE (FRPT) SENSOR .

• Engine cooling fan.

  Refer to: ELECTRIC COOLING FAN .

• Stoplamp switch.

  Refer to: Anti-Lock Control - Stability Assist .

• Speed control cancel/suspend switch.

  Refer to: Speed Control - V8 5.0L Petrol/V8 S/C 5.0L Petrol .

• Oil level and temperature sensor.

  Refer to: OIL LEVEL AND TEMPERATURE SENSOR .

• Fuel low pressure (LP) sensor.

  Refer to: FUEL PRESSURE SENSOR - LOW PRESSURE (LP) FUEL SYSTEM .

• Fuel pump driver module.

  Refer to: FUEL PUMP DRIVER MODULE (FPDM) .

The ECM provides outputs to the following:

• Electronic throttle
• Main relay
• Heater elements of the heated oxygen sensors (4 off)
• Fuel injectors (8 off).

  Refer to: FUEL INJECTORS .

• Ignition coils (8 off).

  Refer to: IGNITION COILS .

• Variable camshaft timing (VCT) solenoids (4 off).

  Refer to: VARIABLE CAMSHAFT TIMING SOLENOIDS .

• Noise feedback system tuning valve.

  Refer to: NOISE FEEDBACK SYSTEM .

• Evaporative emissions canister purge valve.

  Refer to: EVAPORATIVE EMISSIONS CANISTER PURGE VALVE .

• Engine starter relay

  Refer to: Engine Starter Relay

• Engine cooling fan.

  Refer to: ELECTRIC COOLING FAN .

• Generator.

  Refer to: GENERATOR .

• HP fuel pumps.

  Refer to: HIGH PRESSURE FUEL PUMPS .

• Fuel pump driver module.

  Refer to: FUEL PUMP DRIVER MODULE (FPDM) .

• DMTL (diagnostic module - tank leakage).

  Refer to: DIAGNOSTIC MODULE TANK LEAKAGE (DMTL) PUMP - (NAS ONLY) .