VCFRONT_a470 — Implausible Pd Pl Detected

Full alert identifier: VCFRONT_a470_implausiblePdPlDetected

Alert description

Difference between the discharge pressure and liquid pressure (Pd-Pl) increased. Discharge lines or Liquid Cooled Condenser (LCC) or Shut Off Valve (SOV) may be blocked.

Potential impact

Thermal performance is degraded.

Set condition

Pd-Pl is greater than 6 bar for 5 consecutive seconds.

Clear condition

Pd-Pl is less than 4 bar for 5 consecutive seconds.

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
Pressure Discharge `VCFRONT_a470_pressureDischarge`	bar
Pressure Liquid `VCFRONT_a470_pressureLiquid`	bar

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of VCFRONT_a470.

VCFRONT_a469 — Prv Pop Detected VCFRONT_a469_prvPopDetected The compressor or discharge lines may have a possible blockage
VCFRONT_a544 — Radiator Steam Detected VCFRONT_a544_radiatorSteamDetected The coolant system detects the current ambient and vehicle conditions are likely to cause water vapor to steam from the radiator.
VCFRONT_a504 — Air In Refrigerant Detected VCFRONT_a504_airInRefrigerantDetected Low flow index has been detected at high subcool at steady state or suction superheat is found to be abnormally low, which indicates that air bubbles are circulating in the refrigerant system.
VCFRONT_a218 — soc Monitor Detected Threshold Soc VCFRONT_a218_socMonitorDetectedThresholdSoc State of charge (soc) monitor turns on hazards when charging and surpassing the threshold set by the data byte of the UDS command (0x0613)
VCFRONT_a543 — Compressor Low Flow Delivery Detected VCFRONT_a543_compressorLowFlowDeliveryDetected The vehicle controller detected that the compressor delivered much less refrigerant flow than nominal and discharge temperature was abnormally high.

Browse all VCFRONT alert codes