TRCM_a028 — Chassis Length Error
Full alert identifier: TRCM_a028_chassisLengthError
Message shown in the car
Safety restraint system issue Service is required
Alert description
The Restraint Control Module (RCM) receives a message on the CH bus with an unexpected message length.
Potential impact
The Safety Restraint System may not perform as designed.
Set condition
A message is received on the CH bus that does not have the message length expected by the receiving ECU, likely due to firmware version mismatch between ECUs.
Clear condition
Clears after a power cycle when the RCM receives the expected message length on the CH bus.
Signals to check
These diagnostic fields are associated with TRCM_a028. Check the alert's Payload in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
Expected Length
TRCM_
|
— |
Message Id
TRCM_
|
— |
Received Length
TRCM_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of TRCM_a028.