Replacing The Component

The combustion preheater module (CPM) has registered an internal fault.

If the fault is intermittent, it has been registered previously but is no longer present. Intermittent faults can be caused by interference at start up of the combustion preheater module (CPM) or may be a different type of fault which occurs on different occasions. The fault is evaluated depending on how it occurs. Replace the combustion preheater module (CPM) if the fault recurs.

Replace the combustion preheater module (CPM) in the event of a permanent fault.

Remedy as necessary.

Other information 

• see FUEL FIRED BOOSTER HEATER CONTROL UNIT

Fig 1: Identifying Combustion Preheater Module (CPM)

Courtesy of VOLVO CARS CORPORATION

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  Refer to INFORMATION