Checking connectors and components

WARNING: This page is about a different car, the 2004 Volvo S40, 2003 Volvo S40, 2002 Volvo S40, 2001 Volvo S40, and 2000 Volvo S40. However, it is still accessible from the selected car via links, so may be relevant.

HINT: If there is a diagnostic trouble code (DTC) for the boost pressure sensor, fault tracing the diagnostic trouble code (DTC) for the boost pressure sensor should be handled first.

Fig 1: Identifying Ignition OFF

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Disconnecting Connector

Courtesy of VOLVO CARS OF NORTH AMERICA.

Ignition off
Check the connector of the mass air flow sensor, boost pressure sensor, system relay and engine control module (ECM) for contact resistance and oxidation.

Check the induction system for air leaks.

HINT: The diagnostic trouble code (DTC) can be caused by a damaged boost pressure sensor 2 (MAP) or mass air flow sensor.

Remedy as necessary.

Other information
- See Engine control module (ECM), replacing .
- See Connecting the breakout box. EMS 2000 .
- See Signal specification .
- See Boost pressure sensor 1, replacing .
- See Replacing the mass air flow (MAF) sensor .
- See Contents
Fig 3: Identifying Atmospheric Pressure Sensor Connector Terminals
Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 4: Identifying VCT2000 Diagnostic Tool Symbol In VIDA
Courtesy of VOLVO CARS OF NORTH AMERICA.

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Refer to Verification