B12E5 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B12E5 – Off Road Mode Select Switch


B12E5 Possible Symptoms


Engine Light ON (or Service Engine Soon Warning Light)


B12E5 Possible Causes


Faulty Off-Road Mode Select Switch,Off-Road Mode Select Switch harness is open or shorted,Off-Road Mode Select Switch circuit poor electrical connection,Faulty Transfer Case Control Module (TCCM)


B12E5 Description


When the Off-Road Mode Select Switch is depressed, a signal is sent to the Transfer Case Control Module (TCCM) which alerts other modules along the HS-CAN that off-road mode is being requested. Other vehicle functions change to accommodate off-road mode and an indicator illuminates on the off-road mode switch confirming off-road mode.