Diagnostic Trouble Code (DTC) Information CPM-1308

Condition 

Fig 1: Identifying Combustion Fan

Courtesy of VOLVO CARS CORPORATION

The diagnostic trouble code (DTC) is stored if the control module registers that the signal on the cable from the combustion fan is too low.

When the diagnostic trouble code (DTC) is stored, the heater is switched off. If the heater is reactivated, the heater will try to start again.

The diagnostic trouble code (DTC) can be diagnosed when the heater is activated.

Substitute Value 

• None.

Possible Source 

• The fan wheel for the combustion fan has jammed. May be due to freezing or dirt
• Damaged combustion fan.

Fault symptom[s] 

• Poor heating in the passenger compartment
• The parking heater does not operate.