LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chevrolet >> 2013 >> Traverse LS, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 297 (Data Communication System) >> Diagnostic Information and Procedures >> DTC U0100 - U02FF: Control Module U Code List >> Diagnostic Fault Information
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnostic Fault Information

WARNING: This page is about a different car, the 2016 GMC Acadia, 2016 Chevrolet Traverse, and 2016 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
B+ U0100-U02FF U0100-U02FF - -
Ignition U0100-U02FF U0100-U02FF - -
Accessory Wakeup Serial Data U1814 U0100-U02FF - -
Serial Data Communication Enable U2099 U0100-U02FF - -
Chassis High Speed GMLAN Serial Data (+) U0074 U0074, U0100-U02FF U0074 -
Chassis High Speed GMLAN Serial Data (-) U0074 U0074, U0100-U02FF U0074 -
Mid Speed GMLAN Serial Data (+) U0074 U0074, U0100-U02FF U0074 -
Mid Speed GMLAN Serial Data (-) U0074 U0074, U0100-U02FF U0074 -
High Speed GMLAN Serial Data (+) 2 U0073, U0100-U02FF 2 -
High Speed GMLAN Serial Data (-) 2 U0073, U0100-U02FF 2 -
Low Speed GMLAN Serial Data 1 U0100-U02FF 1 -
Ground - U0100-U02FF - -
1. Scan tool does not communicate with low speed GMLAN device
2. Scan tool does not communicate with high speed GMLAN device