Diagnostic Trouble Code (DTC) Information

ECM-531D CONTROL MODULE, INTERNAL FAULT
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION




Condition
Diagnostic trouble code (DTC) ECM-531D is stored if the central electronic module detects a fault in the engine control module (ECM) software (incorrect check sum)

Condition
none

Possible source
- fault in engine control module (ECM)
- changed software in engine control module (ECM)
- defective engine control module (ECM)

Condition
- varies depending on the type of fault