Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Engine Light ON (or Service Engine Soon Warning Light)
The Powertrain Control Module (PCM) monitors the engine speed during the Key On Engine Running (KOER) self-test. When the PCM detects engine speed lower than a calibrated speed, the KOER self-test is aborted and this Diagnostic Trouble Code (DTC) sets.