Checking the wiring

Check the power supply cable between control module terminal #A39 (#A39) and mass air flow (MAF) sensor terminal #4. Check for an intermittent short-circuit to ground.

Check the power supply cable between control module terminal #A39 (#A39) and boost pressure sensor terminal #1. Check for an intermittent short-circuit to ground.

Check the power supply cable between control module terminal #A39 (#A39) and air conditioning (A/C) pressure sensor terminal #3. Check for an intermittent short-circuit to ground.

Check the power cable between control module terminal #B10 (#B20) and fuel tank pressure sensor connector terminal #3. Check for an intermittent short-circuit to ground.

HINT: Read off the 5-volt power supply by clicking on the VCT2000 symbol. 

Remedy as necessary.

Other information: 

• To connect the breakout box, see Connecting the breakout box
• For information about signals on 5 cylinder engines, see Signal specification 
• To access or replace the mass air flow (MAF) sensor, see Mass air flow sensor (MAF), replacing
• To access or replace the boost pressure sensor. See Temperature and pressure sensor, replacing .

Fig 1: Identifying Breakout Box

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying VCT2000 Diagnostic Tool Symbol In VIDA

Courtesy of VOLVO CARS OF NORTH AMERICA.

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