U1254 – SCP (J1850) Invalid or Missing Data for Network Control
The ODBII code U1254 indicates that there is invalid or missing data on the SCP (Serial Communication Protocol) network, which can affect communication between modules in the vehicle. The severity of ODBII code U1254 is moderate. Common Causes For: U1253 SCP (J1850) Invalid or Missing Data for Class A Functions Faulty or damaged wiring/connectors in…
U1255 – Manufacturer Specific Communication Bus Fault.
The ODBII code U1255 indicates a fault in the manufacturer-specific communication bus, suggesting a problem with data transmission between modules in the vehicle’s network. The severity of ODBII code U1255 is generally considered moderate. Common Causes For: U1254 U1254: “Module Communication Failure” Faulty wiring or connectors in the communication bus. Malfunctioning control modules. Poor ground…
U1256 – Control Module Communication Failure
The ODBII code U1256 indicates a “Control Module Communication Failure,” meaning there is a problem with communication between the vehicle’s control modules, which can affect various systems and functions. The severity of ODBII code U1256 is moderate to high. Common Causes For: U1255 SCP (J1850) Invalid or Missing Data for Network Control Faulty control module…
U1257 – Communication Bus Off.
The ODBII code U1257 indicates a communication issue where the vehicle’s communication bus is offline or not functioning properly, preventing modules from exchanging data. The severity of ODBII code U1257 is moderate to severe. Common Causes For: U1256 U1256: “Control Module Communication Failure” Faulty wiring or connectors in the communication bus. Malfunctioning control modules. Short…
U1258 – Lost Communication with Hybrid Powertrain Control Module (HPCM).
The ODBII code U1258 indicates a loss of communication between the vehicle’s onboard diagnostic system and the Hybrid Powertrain Control Module (HPCM), which can affect the operation of the hybrid system. The severity of ODBII code U1258 is generally considered moderate to severe. Common Causes For: U1257 Communication Bus Off. Faulty Hybrid Powertrain Control Module…
U1259 – Lost Communication with Fuel Pump Control Module.
The ODBII code U1259 indicates that there is a loss of communication between the vehicle’s control module and the fuel pump control module, which may affect the fuel pump’s operation. The severity of ODBII code U1259 is generally considered moderate to severe, as it indicates a loss of communication with the fuel pump control module,…
U1260 – Communication Bus Fault.
The ODBII code U1260 indicates a communication bus fault, meaning there is a problem with the data exchange between the vehicle’s control modules, often due to a wiring issue, a faulty module, or a disruption in the communication network. The severity of ODBII code U1260 Communication Bus Fault is moderate. Common Causes For: U1259 Lost…
U1261 – Communication Bus Off.
The ODBII code U1261 indicates a communication issue where the vehicle’s communication bus is offline or not functioning properly, often due to a fault in the network or a module. The severity of ODBII code U1261 is moderate to severe. Common Causes For: U1260 SCP (J1850) Single Ended (+) Circuit Failure Faulty or damaged wiring…
U1262 – Communication Bus Off.
The ODBII code U1262 indicates a communication issue where the vehicle’s communication bus is offline or not functioning properly, often due to a fault in the network or a module failure. The severity of ODBII code U1262 is moderate to severe. Common Causes For: U1261 SCP (J1850) Single Ended (-) Circuit Failure Faulty or damaged…
U1263 – Communication Bus Off.
The ODBII code U1263 indicates a communication issue where the vehicle’s communication bus is offline or not functioning properly, often due to a fault in the network or a module failure. The severity of ODBII code U1263 is moderate to severe. Common Causes For: U1262 SCP (J1850) Communication Bus Fault Faulty or damaged wiring in…