LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Volvo >> 2009 >> V70 >> Repair and Diagnosis >> External Pages >> Different car >> Section 21 (Electrical Components - Design And Function) >> Upper Electronic Module (2003-2004) >> Diagnostic Functions >> Notes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnostic Functions: Notes

WARNING: This page does not describe the selected car, but rather 12 other vehicles, including the 2014 Volvo XC90, 2013 Volvo XC90, 2012 Volvo XC90, 2011 Volvo XC90, and 2010 Volvo XC90. However, it is still accessible from the selected car via links, so may be relevant.

GENERAL 

The upper electronic module (UEM) has a built-in diagnostic system, the Volvo on-board diagnostic (OBD) system, which continuously monitors itself and the input and output signals.

scientia non olet · About LEMON Manuals