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VCDOORRL_a102 — PTC MIA

Full alert identifier: VCDOORRL_a102_PTC_MIA

Alert description

One or more of the messages the vehicle controller receives periodically from the Positive Temperature Coefficient (PTC) heater electronic control unit (ECU) is not received, indicating the PTC heater ECU may be unavailable (MIA).

Potential impact

Thermal management system features depending on PTC heater functionality may be limited or unavailable.

Set condition

One or more of the expected messages from the PTC heater ECU is not received.

Clear condition

The vehicle controller starts receiving the expected messages from the PTC heater ECU.

Signals to check

These diagnostic fields are associated with VCDOORRL_a102. Check the alert's Alert Log in Service Mode Plus for available values.

Signal Unit
VEH Faults And Extras VCDOORRL_a102_VEH_faultsAndExtras —
VEH Feedback Status VCDOORRL_a102_VEH_feedbackStatus —
VEH Rods VCDOORRL_a102_VEH_rods —
VEH Sensor Status VCDOORRL_a102_VEH_sensorStatus —

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of VCDOORRL_a102.

Browse all VCDOORRL alert codes