What does code U3507 mean?

Q: What does code U3507 mean?

Control Module Input Power B Circuit Intermittent/Erratic. U3507 is a generic network code indicating that a control module has detected an intermittent or erratic fault on the power circuit feeding its own internal input power, typically the voltage supply that keeps its memory and logic alive. The module logs this code when the voltage on that circuit momentarily drops, spikes, or cuts out in a way that is not consistent with normal operation, often during cranking, rough road input, or a loose connection.

DTC codes / U35xx · Network communication / U3507

U3507Control Module Input Power B Circuit Intermittent/Erratic

U3507 is a generic network code indicating that a control module has detected an intermittent or erratic fault on the power circuit feeding its own internal input power, typically the voltage supply that keeps its memory and logic alive. The module logs this code when the voltage on that circuit momentarily drops, spikes, or cuts out in a way that is not consistent with normal operation, often during cranking, rough road input, or a loose connection.

SystemNetwork

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaNetwork communication

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