B12E0 Code: Meaning, Causes, and Symptoms | OBD2 Codes
B12E0 – Off Road Indicator Circuit
B12E0 Possible Symptoms
Engine Light ON (or Service Engine Soon Warning Light)
B12E0 Possible Causes
Faulty Off-Road Mode Switch,Off-Road Mode Switch harness is open or shorted,Off-Road Mode Switch circuit poor electrical connection,Faulty Transfer Case Control Module (TCCM)
When the off-road 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. The OBDII code sets when in Off-Road Mode, the TCCM senses the indicator lamp circuit is not to factory specifications.