Diagnostic trouble code (DTC) information ECM-600B

Condition 

Fig 1: Identifying Turbocharger Control Valve

Courtesy of VOLVO CARS OF NORTH AMERICA.

The engine control module (ECM) checks the signal cable for the turbocharger (TC) control valve.

The diagnostic trouble code (DTC) is stored if the engine control module (ECM) detects an open-circuit in the signal cable for the turbocharger (TC) control valve.

The diagnostic trouble code (DTC) can be diagnosed during control of the boost pressure.

Substitute Value 

• None.

Possible Source 

• Open-circuit in the signal cable
• Open-circuit in the power cable
• Damaged turbocharger (TC) control valve.

Fault symptom[s] 

• Malfunction indicator lamp (MIL) lit.