CAL1 Seal checksum error
â–¶ How to fix
Clear the DTC memory and switch off/on the power with the starter key (U15). Run the engine for approx 10 minutes. Check if the DTC has been generated again. If the DTC has been regenerated or if the engine fails to start, replace the EEC control unit, E67
What you'll see
No driver-visible symptom recorded.
System reaction
No system-reaction text recorded.
Diagnostic depth
Detection
The flash data checksum calculation detects a crypto checksum deviation for CAL1 SW memory area
Possible cause
Possible faults are that the EEC (E67) is physically broken or that the EEC (E67) software is modified or tampered with.