Program (Flash) Memory Failure
â–¶ How to fix
Re-program (flash) the application software via bootloader. If re-programming of the application software doesn't fix the problem, exchange the ECU.
What you'll see
No driver-visible symptom recorded.
System reaction
No CAN transmit messages from application available. No pressure regulation. Safety-valve will become active with running engine.
Diagnostic depth
Detection
Bootloader is unable to detect application software during ECU startup.
Possible cause
Previously performed update of application software failed due to undervoltage, loss of supply voltage or switching off ignition during the programming cycle. Program (flash) memory failure.