LongitudinalControl checksum error
â–¶ How to fix
Check the wiring and connectors on TMS (E5) and cruise control manager.
What you'll see
No driver-visible symptom recorded.
System reaction
Adaptive Cruise Control (AiCC) not possible. External speed control interface not possible. Yellow warning lamp.
Diagnostic depth
Detection
ECU indicating counter or checksum error on message Longitudinal Control 1, Longitudinal Control 2 or Longitudinal Control Target.
Possible cause
The data in at least one of the messages Longitudinal Control 1, Longitudinal Control 2 or Longitudinal Control Target is corrupt or out of synch.