Checking Components And Wiring

Check the signal cable between engine control module (ECM) terminal #B46 (#C46) and leak diagnostic unit terminal #3. Check for a short-circuit to supply voltage.

Remedy as necessary.

Other information: 

• see CONNECTING THE BREAKOUT BOX
• see SIGNAL SPECIFICATION (2004, 2005)
• see SIGNAL SPECIFICATION (2006, 2007)
• see COMPONENT SPECIFICATIONS
• see LEAK DIAGNOSTIC PUMP
• see CHECKING WIRING AND TERMINALS

Fig 1: Identifying Leak Diagnostic Unit Connector Terminals

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Volvo Leak Detection Pump (Leak Diagnostic Unit)

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Continue 

  Refer to VERIFICATION