The ODBII code U1620 indicates a communication fault within the data bus system of a vehicle, suggesting that there is a problem with the transmission of data between modules or components. The severity of ODBII code U1620 is generally considered moderate. Common Causes For: U1619 refers to a communication issue between the engine control module…

The ODBII code U1622 indicates a control module configuration incompatibility, meaning that there is a mismatch or conflict in the configuration settings between different control modules in the vehicle’s network. The severity of ODBII code U1622 is moderate. Common Causes For: U1620 U1620: “Data Bus Communication Fault Detected” Mismatched control modules Incorrect software version Faulty…

The ODBII code U1625 indicates a malfunction in the vehicle communication bus, which affects the ability of various modules to communicate with each other. The severity of ODBII code U1625 is moderate. Common Causes For: U1622 U1622: Control Module Configuration Incompatibility Faulty wiring or connectors in the communication bus Malfunctioning control modules Corroded or damaged…

The ODBII code U1627 indicates a malfunction in the vehicle communication bus, which affects the ability of various modules to communicate with each other. The severity of ODBII code U1627 is moderate. Common Causes For: U1625 U1625: “Vehicle Communication Bus Malfunction” Faulty OBD-II connector Damaged wiring or connectors in the communication circuit Malfunctioning control modules…

The ODBII code U1628 indicates a malfunction in the vehicle communication bus, which affects the ability of various modules to communicate with each other. The severity of ODBII code U1628 is moderate. Common Causes For: U1627 U1627: “Vehicle Communication Bus Malfunction” Faulty OBD-II connector Damaged wiring or connectors in the communication bus Malfunctioning control modules…

The ODBII code U1629 indicates that the vehicle’s control module has received invalid or corrupted data from another control module in the vehicle. The severity of ODBII code U1629 is generally considered moderate. Common Causes For: U1628 U1628: “Vehicle Communication Bus Malfunction” Faulty Vehicle Control Module (VCM) Corrupted or damaged wiring harness Poor electrical connections…

The ODBII code U1630 indicates a “CAN Bus Communication Failure,” meaning there is a problem with the communication between the vehicle’s control modules over the Controller Area Network (CAN) bus. The severity of ODBII code U1630: “CAN Bus Communication Failure” is generally considered moderate to severe. Common Causes For: U1629 Invalid Data Received from Vehicle…

The ODBII code U1631 indicates a communication fault on the CAN bus related to the Body Control Module, suggesting that the module is not receiving or sending data properly within the vehicle’s network. The severity of ODBII code U1631 is moderate to high. Common Causes For: U1630 U1630: “CAN Bus Communication Failure” Faulty Body Control…

The ODBII code U1632 indicates a “BCM Communication Failure,” meaning there is a problem with the communication between the Body Control Module (BCM) and other vehicle modules. The severity of ODBII code U1632: “BCM Communication Failure” is generally considered moderate to high. Common Causes For: U1631 U1631: CAN Bus Communication Fault in Body Control Module…

The ODBII code U1633 indicates that the vehicle’s control module has detected invalid or missing data related to the vehicle speed, which may affect performance or functionality. The severity of ODBII code U1633 is moderate. Common Causes For: U1632 U1632: “BCM Communication Failure” Faulty vehicle speed sensor Damaged wiring or connectors Poor ground connection Malfunctioning…