Signal too low: Verification: Verification

HINT: After carrying out the repair, check that the fault has been remedied. 

Fig 1: Identifying Ignition ON

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Connector(s) Reinstallation

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off
• Reinstall the connectors, components etc.
• Ignition on
• Read off the engine coolant temperature.
  NOTE:

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

  • Activate the heater.

  HINT: After repair, the voltage of the flame sensor can be checked. The voltage must be a maximum of 1.0 V. 

  Check the heater function.

  CAUTION:

  In order for to enable start of the heater itself, the battery voltage must be normal, coolant temperature must be lower than +96 °C and the heater's after-run/stop sequence must be finished. There must also be enough fuel in the tank.

  CAUTION:

  If the heater or other components are not activated, try closing down the activation window and then starting the activation again with the symbol for VCT2000.

  Other information: 

  • See Engine coolant heater, test running .
  Fig 3: Identifying VCT2000 Diagnostic Tool Symbol In VIDA

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Is the heater working? 

• YES 

  VERIFIED:  Troubleshooting has been completed.

• NO 

  Refer to Information