Checking The Component And Wiring

Check signal cable for an open-circuit and short-circuit to supply voltage.

Take readings between:

• Engine Control Module (ECM) #A86 (#B26) and boost pressure sensor #4.

Check the ground lead. Check for an open-circuit.

Take readings between:

• Engine Control Module (ECM) #A38 (#A38) and boost pressure sensor #1.

HINT: The diagnostic trouble code (DTC) may be caused by a damaged boost pressure sensor. 

Remedy as necessary.

Other information: 

• see CONNECTING THE BREAKOUT BOX
• see SIGNAL SPECIFICATION
• see TEMPERATURE AND MANIFOLD ABSOLUTE PRESSURE SENSOR (MAPT)
• see CHECKING WIRING AND TERMINALS

Fig 1: Identifying 4-Bit Connector

Courtesy of VOLVO CARS CORPORATION

Fig 2: Identifying VCT2000 Diagnostic Tool Symbol In VIDA (Volvo Scan Tool)

Courtesy of VOLVO CARS CORPORATION

Fig 3: Identifying Boost Pressure Sensor

Courtesy of VOLVO CARS CORPORATION

Refer to VERIFICATION