VCLEFT_a091 — CMPD MIA
Full alert identifier: VCLEFT_a091_CMPD_MIA
Alert description
One or more of the messages the vehicle controller receives periodically from the heat pump system compressor (CMPD) electronic control unit (ECU) is not received, indicating the CMPD ECU may be unavailable (MIA).
Potential impact
The HVAC system may be unavailable or may not function as expected.
Set condition
One or more of the expected messages from the CMPD ECU is not received.
Clear condition
The vehicle controller starts receiving the expected messages from the CMPD ECU.
Signals to check
These diagnostic fields are associated with VCLEFT_a091. Check the alert's Payload in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
VEH Faults And Extras
VCLEFT_
|
— |
VEH Info
VCLEFT_
|
— |
VEH State
VCLEFT_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of VCLEFT_a091.