Checking the ground lead
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.
Connect an ohmmeter between the intake air temperature (IAT) sensor connector terminal #2 (control module side) and ground.
The ohmmeter should read approximately 0 Ω.
- OK
Refer to Checking the signal cable
- NOT OK
Refer to Checking wiring and terminals