End-of-line (EOL) parameter values, and function parameter values, have been lost.
â–¶ How to fix
• Spare part program the EST ECU • IIf the spare part programming don't work, check supply voltage first and if no result change ECU. Verify that the issue is solved by performing a Diagnostic SelfTest (requires Parking Brake to be applied) - If the root cause fault has been fixed, this DTC will be set passive.
What you'll see
No driver-visible symptom recorded.
System reaction
Red Steer tag axle fault warn EST in released or fixed mode
Diagnostic depth
Detection
Parameter values (vehicle configuration data) could not be read from the persistent memory.
Possible cause
System supply voltage (U30) was disrupted, while the ECU was writing to the file containing parameters values, thus corrupting the file system.