Hardware watchdog error
â–¶ How to fix
Clear all the fault codes and cycle the ignition. If the fault code returns, change the EEC control unit.
What you'll see
No driver-visible symptom recorded.
System reaction
The EEC control unit is disabled, which leads to higher emissions. Yellow engine warning light MI Lamp Continuous Note: This fault shuts off the reductant flow in the system. This affects the cooling of the reductant dosing unit. Combined with high exhaust temperatures this could damage the reductant dosing unit.
Diagnostic depth
Detection
Error in the EEC control unit hardware watchdog.
Possible cause
The hardware watchdog does not conform to the given specifications, internal EEC control unit error.