B11D9 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B11D9 – Vehicle Battery Circuit Below Threshold


B11D9 Possible Symptoms


Engine Light ON (or Service Engine Soon Warning Light)


B11D9 Possible Causes


Low Battery Charge,Charging System,Faulty Battery,Battery harness is open or shorted,Battery circuit poor electrical connection,Faulty Steering Column Control Module (SCCM)


B11D9 Description


The Steering Column Control Module (SCCM) continuously monitors input voltage for correct operation. If voltage outside of defined limits is detected by the SCCM, the applicable DTC sets. DTC B11D9 can set if the vehicle battery has been discharged. The vehicle battery may become discharged due to excessive load(s) on the charging system from aftermarket accessories or if the vehicle has been left unattended with the accessories on. The OBDII code sets if the SCCM detects battery voltage below 8 volts on the battery voltage supply circuit.