Checking The Function Of The Glow Plug

Fig 1: Identifying Ignition ON

Courtesy of VOLVO CARS CORPORATION

Fig 2: Connecting Connector

Courtesy of VOLVO CARS CORPORATION

• Ignition on.
  NOTE:

  It is important that only the ignition is on in order for the heater to start.

• Activate the heater.

  A buzzing sound should be heard from the heater.

  Check the function of the heater. See ENGINE COOLANT HEATER, TEST RUNNING .

  Other information: 

  • For a description of parameters, see DESCRIPTION OF PARAMETERS
  • For a description of activations, see ACTIVATING COMPONENTS/FUNCTIONS .
  Fig 3: Identifying VCT2000 Diagnostic Tool Symbol In VIDA

  Courtesy of VOLVO CARS CORPORATION

Does the heater operate? 

• YES 

  Refer to INTERMITTENT FAULT 

• NO 

  Refer to CHECKING THE CONNECTORS