Replacing the component

Replace the charge regulator on the generator (GEN).

Start the engine and wait for at least 1 minute. Read off diagnostic trouble codes (DTCs).

Other information: 

• To connect the breakout box, see Connecting the breakout box
• To access or replace the charge regulator:
  • For B5xx4x, see Governor, replacing .
  • For B6xx4x, see Governor, replacing .

Fig 1: Identifying VCT2000 Diagnostic Tool Symbol In VIDA

Courtesy of VOLVO CARS OF NORTH AMERICA.

Is the fault intermittent? 

• YES 

  Refer to Verification 

• NO 

  Refer to Replacing the component 

Replace the battery.

Other information: 

• When replacing the battery, see Battery, disconnecting .

• Continue 

  Refer to Verification