LEMON Manuals: Even more car manuals for everyone
Home >> Volvo >> 2003 >> C70 2.3 53, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 93 (Electronic Climate Control (ECC), Manual Climate Control (MCC), Heater Module (HEA) - Diagnostic Trouble Code (DTC) Diagnostics - 2 Of 2 (Coupe)) >> HEA-842: Power Supply. Missing (1999-2002) >> Diagnostic Trouble Code (DTC) Information

Diagnostic Trouble Code (DTC) Information

WARNING: This page is about a different car, the 2002 Volvo C70, 2001 Volvo C70, 2000 Volvo C70, 1999 Volvo C70, and 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.

Condition 

Fig 1: Identifying Fuel Pump Circuit, Water Pump Circuit And Combustion Fan Circuit
GLL127616Courtesy of VOLVO CARS OF NORTH AMERICA.

A diagnostic trouble code (DTC) is stored if there is a short-circuit to ground or an open-circuit in the power supply from the control module to the fuel pump, water pump and combustion fan.

Substitute Value 

Heater not activated.

Possible Source 

Fault symptom[s]