Skip to content

VCFRONT_d637 — Batt Coolant Pump Detects Air In System

Full alert identifier: VCFRONT_d637_battCoolantPumpDetectsAirInSystem

Alert description

The Front Vehicle Controller (VCFront) has detected an air lock in the battery coolant pump due to smaller than expected pump current values.

Potential impact

Powertrain performance may be limited.

Set condition

The pump current is below the minimum threshold value.

Clear condition

This information is not available in the alert reference.

Diagnostic trouble code (DTC)

P2CF5B1

Battery Coolant Pump Detects Air In System

Hybrid/EV Battery Pack Coolant Pump "B"

Fault type: Speed Above Threshold - Overspeed

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of VCFRONT_d637.

Browse all VCFRONT alert codes