The ignition control module (ICM) and ignition coil tests in this article assume that your vehicle is Cranking but NOT STARTING due to a NO SPARK Condition. Your car's Engine Control Module (ECM) monitors all the sensors in the vehicle to make sure that the car's systems are running as they're supposed to. The power train control module on a Ford controls every aspect of the vehicle's engine, transmission, clutch and electrical and fuel delivery. Now, if you need to test a misfire condition, or test the spark plug wires, or distributor cap on this type of GM ignition system, click here: How To Test A Misfire.
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Dakota Digital manufactures digital instrumentation and accessories for the automotive, motorcycle and car audio enthusiast. In addition to controlling the fuel mixture, the ECM also makes sure the timing and emissions control system work properly, as well as a variety of other systems and sensors. The engine control module (ECM), also commonly referred to as the engine control unit (ECU) or powertrain control module (PCM), is one of the most important components found on virtually all modern vehicles.
Engine control module (ECM) -auxiliary 5 voltoutput erratic: Wiring, poor connection, APP sensor, CMP sensor, EGR solenoid, EGR valve position sensor, MAP sensor, ECM: P1631: TCM Internal Processor Clock Performance: P1639 : TCM Internal CAN 2 RAM Performance: P1652: CAN data bus -short circuit to ground: Wiring, connected system, ECM: P1653: CAN data bus -short circuit to ground: Wiring.
Symptoms of Wear or Failure Vehicle failing to start or run Check engine light showing codes that cannot be repaired Poor performance of the engine Engine stalling Many. It essentially functions as the main computer for many of the vehicle's engine performance and drivability functions. The ECM, a crucial part of the vehicle's onboard computer, resides in either the engine compartment or under one of the front seats. Fuse box diagram (location and assignment of electrical fuses and relays) for Buick Regal (1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004).