Engine Control Module

Courtesy of JAGUAR CARS, INC.

The engine control module (ECM) is installed behind the suspension turret on the left-hand (LH) side of the engine compartment, on a bracket attached to the longitudinal and the wheel arch apron panel.

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

The engine control module (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).
• Throttle position sensor.
• Heated oxygen sensors (4 off).
• Accelerator pedal position (APP) sensor.
• Ambient air temperature sensor.
• Fuel rail pressure (FRP) sensor. For additional information, refer to Fuel Charging And Controls information.
• Engine cooling fan. For additional information, refer to Engine Cooling information.
• Stoplamp switch. For additional information, refer to Anti-Lock Control - Stability Assist information.
• Speed control cancel/suspend switch. For additional information, refer to Speed Control information.
• Oil level and temperature sensor. For additional information, refer to Engine information.
• Fuel LP (low pressure) sensor. For additional information, refer to Fuel Tank And Lines information.
• Fuel pump driver module. For additional information, refer to Fuel Tank And Lines information.

The engine control module (ECM) provides outputs to the following:

• Electronic throttle.
• Main relay.
• Heaters elements of the heated oxygen sensors (4 off).
• Fuel injectors (8 off). For additional information, refer to Fuel Charging And Controls information.
• Ignition coils (8 off). For additional information, refer to Engine Ignition information.
• variable camshaft timing (VCT) solenoids (4 off). For additional information, refer to Engine information.
• Camshaft profile switching solenoids (2 off). For additional information, refer to Engine information.
• Variable intake system tuning valve. For additional information, refer to Intake Air Distribution And Filtering information.
• evaporative emission (EVAP) canister purge valve. For additional information, refer to Evaporative Emissions information.
• Engine starter relay. For additional information, refer to Starting System information.
• Engine cooling fan. For additional information, refer to Engine Cooling information.
• Generator. For additional information, refer to Generator And Regulator information.
• HP fuel pumps. For additional information, refer to Fuel Charging And Controls information.
• Fuel pump driver module. For additional information, refer to Fuel Tank And Lines information.
• DMTL (diagnostic module - tank leakage). For additional information, refer to Evaporative Emissions information.