What does code P2B58 mean?

Q: What does code P2B58 mean?

Engine Coolant Flow Control Valve Motor Current High. P2B58 means the engine computer has detected excessive current draw on the electrical circuit that powers the engine coolant flow control valve motor. The valve regulates coolant flow to manage engine temperature, and the computer monitors the motor's current to ensure it stays within a safe operating range. When current exceeds the expected threshold, the computer stores this code and may disable the valve's active control.

DTC codes / P2Bxx · Hybrid propulsion / P2B58

P2B58Engine Coolant Flow Control Valve Motor Current High

P2B58 means the engine computer has detected excessive current draw on the electrical circuit that powers the engine coolant flow control valve motor. The valve regulates coolant flow to manage engine temperature, and the computer monitors the motor's current to ensure it stays within a safe operating range. When current exceeds the expected threshold, the computer stores this code and may disable the valve's active control.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaHybrid propulsion

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