OBD-II Trouble Codes

Code : U1900Marque : All makesDescription : U1900 CAN Communication Bus FaultPossible causes : – Faulty / intermittent ignition switch connections – CAN Bus wiring intermittently open/shorted to power or ground – Faulty / intermittent connection at PCM – Faulty electrical connections at ABS Control Module – Faulty electrical connections at the instrumentSolutions : – […]

Code : U1900Marque : MERCURYDescription : U1900 MERCURY CAN Communication Bus FaultPossible causes : – Faulty / intermittent ignition switch connections – CAN Bus wiring intermittently open/shorted to power or ground – Faulty / intermittent connection at PCM – Faulty electrical connections at ABS Control Module – Faulty electrical connections at the instrumentSolutions : –

Code : U1900Marque : LINCOLNDescription : U1900 LINCOLN CAN Communication Bus FaultPossible causes : – Faulty / intermittent ignition switch connections – CAN Bus wiring intermittently open/shorted to power or ground – Faulty / intermittent connection at PCM – Faulty electrical connections at ABS Control Module – Faulty electrical connections at the instrumentSolutions : –

Code : U1900Marque : FORDDescription : U1900 FORD CAN Communication Bus FaultPossible causes : – Faulty / intermittent ignition switch connections – CAN Bus wiring intermittently open/shorted to power or ground – Faulty / intermittent connection at PCM – Faulty electrical connections at ABS Control Module – Faulty electrical connections at the instrumentSolutions : –

Code : U1806Marque : All makesDescription : U1806 SCP (J1850) Lack of Acknowledgment for Primary IdPossible causes : –Solutions : – Carry out a Reset via CarDiag – Choose a better quality fuel – Check that the tank cap is securely closed – Check the oil level and add more if it is lower than

Code : U1798Marque : All makesDescription : U1798 SCP (J1850) Lack of Acknowledgment for External Access (Doors)Possible causes : –Solutions : – Carry out a Reset via CarDiag – Choose a better quality fuel – Check that the tank cap is securely closed – Check the oil level and add more if it is lower

Code : U1797Marque : All makesDescription : U1797 SCP (J1850) Lack of Acknowledgment for Door LocksPossible causes : –Solutions : – Carry out a Reset via CarDiag – Choose a better quality fuel – Check that the tank cap is securely closed – Check the oil level and add more if it is lower than

Code : U1794Marque : All makesDescription : U1794 SCP (J1850) Lack of Acknowledgment for MirrorsPossible causes : –Solutions : – Carry out a Reset via CarDiag – Choose a better quality fuel – Check that the tank cap is securely closed – Check the oil level and add more if it is lower than MAX

Code : U1750Marque : All makesDescription : U1750 SCP (J1850) Lack of Acknowledgment for Audible WarningsPossible causes : –Solutions : – Carry out a Reset via CarDiag – Choose a better quality fuel – Check that the tank cap is securely closed – Check the oil level and add more if it is lower than

Code : U1736Marque : All makesDescription : U1736 SCP (J1850) Lack of Acknowledgment for TelltalesPossible causes : –Solutions : – Carry out a Reset via CarDiag – Choose a better quality fuel – Check that the tank cap is securely closed – Check the oil level and add more if it is lower than MAX