Checking the air conditioning (A/C) pressure sensor

WARNING: This page is about a different car, the 2002 Volvo C70, 2001 Volvo C70, 2000 Volvo C70, 1999 Volvo C70, and 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Ignition Switch OFF Position

Courtesy of VOLVO CARS OF NORTH AMERICA.

Ignition off.
Fuel tank pressure sensor and accelerometer disconnected.
Disconnect the air conditioning (A/C) pressure sensor.
Connect an ohmmeter between fuel tank pressure sensor connector terminal 3 (engine control module (ECM) side) and ground.

Fig 2: Identifying 3-Bit Connector
Courtesy of VOLVO CARS OF NORTH AMERICA.

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

The ohmmeter should read 0.2-1.5kΩ

OK
Refer to Replacing air conditioning (A/C) pressure sensor
NOT OK
Refer to Checking atmospheric pressure sensor