Powertrain Control Modules (ECM/PCM/ECUs) are responsible for monitoring fuel level sensor signals. The information obtained from this sensor is used to adjust fuel gauges on the instrument panel to reflect the actual amount of fuel remaining in the tank, and ...
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P0335 Malfunction in the Crankshaft Position Sensor “A” Circuit Fault: What is it ?
When you first get in your car to drive to work, what is the first thought that comes to mind? What is the position of your crankshaft when you get into your vehicle to go to work in the morning? ...
P0304 Cylinder 4 Misfire Detected Fault: What is it ?
The vehicle computer (PCM/ECM/ECU), detects multiple misfires on cylinder 4. The P0304 code can appear with other codes such as rich/lean fuel or misfire codes. The ECU monitors ignition timing for all cylinders. It will set the fault code if ...
P2138 Throttle/Pedal Position Sensor/Switch ‘D’/’E’ Voltage Correlation Fault: What is it?
It is important to know the history of the throttle valve and the impact it had on automotive design in the 1990s. The design of vehicles produced before 1990 was relatively simple compared to the computer-controlled models we see today. ...
P2509 ECM/PCM Power Input Signal Intermittent Fault: What is it?
The power transmission system control modules (PCM/ECM), which receives information from multiple circuits, displays the fault code P2509. The ECM is supplied with voltage via a contact relay. In the contact relay, you will find circuits for battery voltage, chassis ...