VCFRONT_a464 — High Flow Index High Subcool Flagged

Full alert identifier: VCFRONT_a464_highFlowIndexHighSubcoolFlagged

Alert description

The vehicle controller detects a discrepancy in the estimated refrigerant flow rates between the A/C compressor and recirculation electronic expansion valve (EXV) as the estimated refrigerant flow index is higher than expected while the subcool is high.

Potential impact

Cabin climate control system air conditioning and heating may be limited or unavailable. Battery heating and cooling performance may be limited.

Set condition

The estimated refrigerant flow index is above the expected level, and the subcool is high.

Clear condition

Clears automatically when vehicle is asleep.

Signals to check

Open this alert in Service Mode Plus and review the Payload tab. Use the field names below to identify the values shown by your vehicle.

Signal	Unit
Flow Index `VCFRONT_a464_flowIndex`	—
Flow Index Filtered `VCFRONT_a464_flowIndexFiltered`	—
Subcool `VCFRONT_a464_subcool`	degC
Subcool Filtered `VCFRONT_a464_subcoolFiltered`	degC

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of VCFRONT_a464.