P30D5 Code – NOx Sensor 3 Signal Message Counter Incorrect
Code P30D5 Possible CausesFaulty NOx Sensor 3NOx Sensor 3 circuit poor electrical connectionNOx Sensor 3 harness is open or shortedFaulty Powertrain Control ModuleLow battery voltage
OBDII Codes
OBDII Codes including PXXXX, UXXXX, CXXXX, BXXXX
P30BD Code – Engine Stall Prevention Active Signal Message Counter Incorrect
Code P30BD Possible CausesEngine Control Module circuit poor electrical connectionEngine Control Module harness is open or shortedFaulty Engine Control Module ECM
P3495 Code – Cylinder 12 Exhaust Valve Control Circuit Low
Code P3495 Possible CausesFaulty Cylinder Deactivation SolenoidLow oil pressureRestricted oil passageFaulty Engine Control Module ECM
P3494 Code – Cylinder 12 Exhaust Valve Control Circuit Performance
Code P3494 Possible CausesFaulty Cylinder Deactivation SolenoidLow oil pressureRestricted oil passageCylinder Deactivation Solenoid circuit poor electrical connectionCylinder Deactivation Solenoid harness is open or shortedEngine mechanical condition
P3491 Code – Cylinder 12 Deactivation Intake Valve Control Circuit Low
Code P3491 Possible CausesFaulty Cylinder Deactivation SolenoidLow oil pressureRestricted oil passageCylinder Deactivation Solenoid circuit poor electrical connectionCylinder Deactivation Solenoid harness is open or shortedEngine mechanical condition
P3485 Code – Cylinder 11 Exhaust Valve Control Circuit Open
Code P3485 Possible CausesFaulty Cylinder Deactivation SolenoidLow oil pressureRestricted oil passageCylinder Deactivation Solenoid circuit poor electrical connectionCylinder Deactivation Solenoid harness is open or shortedEngine mechanical condition
P3481 Code – Cylinder 11 Deactivation Intake Valve Control Circuit Open
Code P3481 Possible CausesFaulty Cylinder Deactivation SolenoidLow oil pressureRestricted oil passageCylinder Deactivation Solenoid circuit poor electrical connectionCylinder Deactivation Solenoid harness is open or shortedEngine mechanical condition
P3480 Code – Cylinder 10 Exhaust Valve Control Circuit High
Code P3480 Possible CausesFaulty Cylinder Deactivation SolenoidLow oil pressureRestricted oil passageCylinder Deactivation Solenoid circuit poor electrical connectionCylinder Deactivation Solenoid harness is open or shortedEngine mechanical condition
P3473 Code – Cylinder 10 Deactivation Intake Valve Control Circuit Open
Code P3473 Possible CausesFaulty Cylinder Deactivation SolenoidLow oil pressureRestricted oil passageCylinder Deactivation Solenoid circuit poor electrical connectionCylinder Deactivation Solenoid harness is open or shortedEngine mechanical condition
P3471 Code – Cylinder 9 Exhaust Valve Control Circuit Low
Code P3471 Possible CausesFaulty Cylinder Deactivation SolenoidLow oil pressureRestricted oil passageCylinder Deactivation Solenoid circuit poor electrical connectionCylinder Deactivation Solenoid harness is open or shortedEngine mechanical condition