Diagnostic Trouble Code (DTC) Information ECM-720B

Condition 

Fig 1: Engine Control Module

Courtesy of VOLVO CARS CORPORATION

The diagnostic trouble code (DTC) is stored if the engine control module (ECM) registers a fault in the circuit for the timer functions.

Substitute Value 

• None.

Possible Source 

• Damaged engine control module (ECM).

Fault symptom[s] 

• Malfunction indicator lamp (MIL) lit.