Diagnostic Trouble Code (DTC) Information ECM-902C

Condition 

Fig 1: Identifying Engine Control Module (ECM)

Courtesy of VOLVO CARS CORPORATION

The diagnostic trouble code (DTC) is stored if the engine control module (ECM) registers an internal fault when the cruise control is active.

The diagnostic trouble code (DTC) can be diagnosed when the ignition is switched on.

Substitute Value 

• The cruise control is disengaged when the fault is active.

Possible Source 

• Damaged engine control module (ECM).

Fault symptom[s] 

• Cruise control does not function at all.