LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> GMC >> 2016 >> Terrain SL, Gas >> Repair and Diagnosis >> External Pages >> Different car >> Section 82 (Data Communication System) >> Diagnostic Information and Procedures >> DTC U2105-U2199: 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 2015 GMC Terrain and 2015 Chevrolet Equinox. 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+ U2105-U2199 U2105-U2199 - -
Ignition U2105-U2199, U1814, U2099 U2105-U2199 - -
High Speed GMLAN Serial Data (+) 2 U2105-U2199 2 -
High Speed GMLAN Serial Data (-) 2 U2105-U2199 2 -
Low Speed GMLAN Serial Data 1 U2105-U2199 1 -
Ground - U2105-U2199 - -
1. Scan tool does not communicate with low speed GMLAN device
2. Scan tool does not communicate with high speed GMLAN device