What does code U3010 mean?

Q: What does code U3010 mean?

Ignition Input Start. U3010 is a generic network communication code indicating that a module on the vehicle's controller area network (CAN) bus has reported a problem with the ignition input start signal, which is the voltage feed that tells modules the key has been turned to the start position. The computer detected an implausible or missing signal on the circuit that carries the ignition start input to one or more electronic control units, so it logged the fault and may illuminate the warning light.

DTC codes / U30xx · Network wiring and bus faults / U3010

U3010Ignition Input Start

U3010 is a generic network communication code indicating that a module on the vehicle's controller area network (CAN) bus has reported a problem with the ignition input start signal, which is the voltage feed that tells modules the key has been turned to the start position. The computer detected an implausible or missing signal on the circuit that carries the ignition start input to one or more electronic control units, so it logged the fault and may illuminate the warning light.

SystemNetwork

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaNetwork wiring and bus faults

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.