Checking Diagnostic Trouble Codes (DTCs)

HINT: To determine whether the Suspension Module (SUM) is defective, create a fault and then read off the diagnostic trouble code (DTC). 

Fig 1: Identifying Ignition OFF

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Disconnecting Connector

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off
• Disconnect the connector for the acceleration sensor on the front suspension. Then switch on the ignition.

• Continue 

  Refer to Checking Diagnostic Trouble Codes (DTCs) 

Fig 1: Identifying Ignition ON

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Switch off the ignition. Wait a few seconds
• Ignition on
• Read off diagnostic trouble codes (DTCs).
  NOTE: The Suspension Module (SUM) must be replaced if only diagnostic trouble code (DTC) SUM-0209 is stored. If there are new diagnostic trouble codes (DTCs) for the acceleration sensor on the front suspension, there has been a temporary write fault in the internal memory.

  Other information 

  • To access or replace the Suspension Module (SUM), see Suspension Module (SUM), Replacing
  • See Contents
  Fig 2: Identifying VCT2000

  Courtesy of VOLVO CARS OF NORTH AMERICA.
  Fig 3: Control Module

  Courtesy of VOLVO CARS OF NORTH AMERICA.

• Continue 

  Refer to Verification