P3348 OBD Code Definition:
Control Circuit for Controller for Turbocharger 1 (J724): Electrical Malfunction
P3348 OBD Code Description:

Possible Symptoms

• Malfunction Indicator Light (MIL) ON

Possible Causes

• Fuse(s) faulty
• Wiring and/or Connector(s) from/to Controller for Turbocharger 1 (J724) faulty
• Controller for Turbocharger 1 (J724) faulty

Possible Solutions

• Check Fuse(s)
• Check Wiring and/or Connector(s) from/to Controller for Turbocharger 1 (J724)
• Check/Replace Controller for Turbocharger 1 (J724)
  • Perform (Selective) Output Test, the Vane Positions should change visibly and audibly
  • Perform System Test using VAS 6395