B10E5 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B10E5 – Wake up Control Circuit Short


B10E5 Possible Symptoms


Engine Light ON (or Service Engine Soon Warning Light)


B10E5 Possible Causes


Faulty Body Control Module (BCM),Body Control Module (BCM) harness is open or shorted,Body Control Module (BCM) circuit poor electrical connection,Faulty Powertrain Control Module (PCM)


B10E5 Description


The wake up control circuit is used to wake up the Powertrain Control Module (PCM) prior to engine cranking. The PCM needs to wake up prior to a crank request so that it has time to go through its own initialization. The wake up control circuit is controlled by the Body Control Module (BCM). The OBDII set when the BCM detects a short to ground or voltage on the wake up control circuit.