Checking the signal cable

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.

Fig 1: Identifying Ignition OFF

Courtesy of VOLVO CARS OF NORTH AMERICA.

Ignition off.
Check the cable between mass air flow (MAF) sensor connector terminal #2 (engine control module (ECM) side) and engine control module (ECM) terminal #16. Check for an open-circuit according to Open-circuit, permanent faults . Check for a short-circuit to ground according to Short-circuit to ground, permanent faults .

Fig 2: Identifying Atmospheric Pressure Sensor Connector Terminals
Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 3: Identifying Ohmmeter
Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 4: EMS2000
Courtesy of VOLVO CARS OF NORTH AMERICA.

Was a fault detected?

YES
Refer to Verification
NO
Refer to Checking intake system