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Home >> Volvo >> 2009 >> S80 Base >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control Module (CCM) And Combustion PREHEATER Module (CPM) Diagnostic Trouble Codes >> CPM-B1D3468 Heater In Lock Out Mode. Algorithm Based Failures. Event Information (2007-2012) >> Fault-Tracing >> Checking Locked Heater

Checking Locked Heater

Fig 1: Identifying Ignition OFF
GLL101046Courtesy of VOLVO CARS CORPORATION
NOTE:

Locking of heater always takes place in combination with at least another DTC in Combustion preheater module (CPM).

Check to, see if any other diagnostic trouble codes (DTCs) are stored. Fault-trace and remedy these diagnostic trouble codes (DTCs) first.

Fig 2: Identifying Booster Heater
GLL154662Courtesy of VOLVO CARS CORPORATION

Was a fault detected? 

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