Signal too low: Verification

HINT: After carrying out the repair, check that the fault has been remedied. 

Fig 1: Identifying Ignition On Position

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Connectors

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off.
• Reconnect connectors, reinstall components.
• Ignition on.
• Read off the manifold absolute pressure (MAP) sensor signal.
• Start the engine. Check that the signal varies (sinks) during acceleration.

  Check that the signal is within its permitted range. The manifold absolute pressure (MAP) sensor voltage is compared to the table value:Air pressure sensor intake manifold (MAP)

  Check that the signal is OK.

  Fig 3: Identifying VCT2000

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Is the signal OK? 

• YES 

  VERIFIED:  Troubleshooting has been completed.

• NO 

  Refer to Information