If the relay fails, or has any issues, it can cause the vehicle to have all sorts of problems, and may The ECM power relay is the relay responsible for sending power to the ECM. The most prominent symptom of a failing ECM is no power when the key is put to start. A power relay manages the voltage flowing to the PCM, keeping it supplied with enough power to run the 2020. Open your hood, locate the PCM, and record the numbers written on it. P0232 Description The Engine Control Module provides ignition positive voltage to the coil side of the fuel pump relay. The fuel pump relay is basically the brain of the fuel pump. This relay applies to all vehicles that use the OBD-II system, especially those vehicles that are newer than 1996. Apparent loss of injection pulse or fuel pump. The ECM will ground pin 26 internally to turn on the ECM relay - Duralast Relay 16050. Usually a bad or failing fuel pump relay will produce a few symptoms that can alert the driver of the issues.
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