Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Cadillac >> 2001 >> Catera >> Repair and Diagnosis >> External Pages >> Different car >> Section 47 (Data Link Communications System) >> Diagnostic Information And Procedures >> DTC U2103: Fewer Controllers On Bus Than Programmed >> Diagnostic Aids >> Notes

Diagnostic Aids: Notes

WARNING: This page is about a different car, the 2000 Cadillac Catera. However, it is still accessible from the selected car via links, so may be relevant.

This DTC is confined to a malfunction with the control module that the DTC was set in, or the control module(s) that is connected to the module the code was set in. A physical malfunction of the harness is not the cause of this DTC. If there is a malfunction with the CAN Bus harness, DTC U2100 will be set

The scan tool can be used as an aid in diagnosing this DTC. In the scan tool data display, observe the following parameters that are transmitted over the CAN Bus:

scientia non olet · About Mike's Workshop Manuals