In today’s advanced vehicles, the ECM works in tandem with the Powertrain Control Module (PCM) and the Transmission Control Module (TCM). The PCM oversees a range of critical engine and transmission functions, including the operation of the fuel injectors, ignition system, and emissions ...
After knowing the transmission control module location and its function, let’s follow along to find out what happens when a transmission control module goes bad? Signs of a bad transmission control module are not hard to pick up if you know and understand what they are or where they come ...
The module also controls the ignition timing and sparks from the spark plugs. It is highly possible that symptoms of a bad PCM include the vehicle not running at all. All these components play a part in kicking off and running the engine. When they can’t function properly, the car may ...
Ignition switch can be bad Mainly if its a Ford. and some cars and trucks have a starter relay if that goes it will not start by turning the key or blown fuse which is the large fuses under the hood on newer trucks. It can be a bad Power wire the thick wire that runs to the ba...
80's, and some 2000 and up Jeep products have the computer (PCM, or Power Control Module) controlling the alternator. I'm sure there will be more and more of these vehicles in the future. Once again, a manual will show you how to bypass the computer circuit to test the alternator ...
In most cases when a blower control module fails, the blower motor doesn't work at all. In some cars (e.g., older GM trucks), a failed blower control module or processor can cause the blower motor to continue running even with the ignition OFF. How is the blower motor resistor ...
This component has its own significance in any automobile smooth operation. Being regulated by the engine control module, it is also known as the engine oil solenoid valve. This valve controls the flow of oil into the engine’s camshaft. If the oil does not reach an inappropriate amount, it...
Once the sensors detect a loss of signal from the valve, the information gets further communicated to the engine control unit. This is why the dashboard light illuminates indicating that you have been driving with a bad purge valve. Rough idling ...
A speed sensor does not only indicate the vehicle speed but also helps with cruise control operation and regulation of the fuel’s flowing and ignition timing. A speedometer may stop working due to a bad sensor. Plus, the affected cruise control can disrupt the driving functions of the car....