Dakota 4WD V8-318 5.2L Magnum (1995)
Malfunction Indicator Lamp: Description and Operation
NOTE: Malfunction Indicator Lamp (MIL), previously called Check Engine Lamp (CEL).
PURPOSE
Indicates immediate service of engine control system is required.
Informs driver that he has entered "Limp-In" mode, lamp ON while vehicle is being driven.
Displays Diagnostic Trouble Codes (DTC's), stored in memory.
OPERATION
Illuminates for three seconds when ignition switch is turned ON, (for bulb test).
Illuminates if Powertrain Control Module (PCM) receives an out of range input from a monitored circuit, or, (for vehicles with California
emissions), from an emission related device.
^ Signals that can set Malfunction Indicator Lamp are battery voltage input, charging system, Manifold Absolute Pressure (MAP), sensor,
Throttle Position Sensor (TPS), Engine Coolant Temperature (ECT) sensor.
Can be used to display any DTC's stored in memory, SEE DIAGNOSIS, TESTING AND INSPECTION.
NOTE: The following information is intended to be used in conjunction with the electrical diagrams.
CIRCUIT OPERATION
The PCM provides ground for the MIL on circuit G3. Circuit G3 connects to cavity 32 of the PCM. For information regarding diagnostic trouble
code access using the MIL.