ECU hardware memory failure
â–¶ How to fix
Replace ECU.
What you'll see
• ACS will stop sending CAN messages which will activate multiple warnings in ICL (at least amber COO and ACS warning) • ACS will set discrete outputs in fail safe modes
System reaction
Red ACS stop lamp Application in fail-safe mode Speed & Torque Limitation
Diagnostic depth
Detection
Fault detected in internal memory of the ECU. The following memory types are checked for faults: • program flash • calibration flash • internal RAM • EEprom emulated in flash • Stack memory
Possible cause
ECU hardware failure