LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chevrolet >> 2016 >> Express 2500 Base, Van Cargo Extended, 4.8L Eng VIN F >> Repair and Diagnosis >> External Pages >> Different car >> Section 8 (Data Communication System) >> Diagnostic Information and Procedures >> DTC U0073 or U2100: Control Module Communication Bus >> Circuit/System Verification
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Circuit/System Verification

WARNING: This page is about a different car, the 2015 GMC Savana 3500, 2015 GMC Savana 2500, 2015 Chevrolet Express 3500, and 2015 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
  1. Refer to Data Link References  to determine which serial data system is used for a specific control module.
  2. This DTC cannot be retrieved with a current status. Diagnosis is accomplished using the symptom Scan Tool Does Not Communicate with High Speed GMLAN Device , or Scan Tool Does Not Communicate with Low Speed GMLAN Device .
scientia non olet · About LEMON Manuals