Volvo Workshop Manuals
XC90 AWD V8-4.4L VIN 85 B8444S (2005)
Relays and Modules > Relays and Modules - Transmission and Drivetrain > Relays and Modules - Differential > Control Unit, Differential Lock > Component Information > Diagrams > Diagram Information and Instructions > Page 2424
Control Unit: Diagnostic Aids
VIDA (Vehicle Information & Diagnostics For Aftersales)
VIDA (Vehicle Information & Diagnostics for Aftersales)
During the second half of 2004, VADIS (Volvo Aftersales Diagnostic and Information System) was phased out and replaced by VIDA (Vehicle
Volvo's VIDA (Vehicle Information & Diagnostics for Aftersales) system ties together service and repair data, parts data, service bulletins, software
Much of the diagnostic information provided here is presented in a manner that assumes the technician is using the web-based Volvo diagnostic
Check Terminals Visually
Cleaning female socket terminals and male pin terminals
Check terminals visually
NOTE: When checking the engine control module (ECM), do not remove the control module from the car before the main relay has interrupted the
Inspect the terminals visually when checking, or taking readings from, opened connectors.
Repair wiring and cable terminals, using appropriate procedures.
Check for oxidation. This can cause poor connections in the terminals
Check for damage to pins and terminals. Check that they are properly inserted into the connector. Check that the cable is properly connected to the
Use a separate male terminal to check the female terminal. Check that they are secure. Pull on the pin.
Contact Resistance and Oxidation
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