Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2016EXPRESS 2500 LS, 6.0L ENG VIN GREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMDATA COMMUNICATION SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESDTC U0074: CONTROL MODULE POWERTRAIN EXPANSION COMMUNICATION BUS OFFDIAGNOSTIC FAULT INFORMATION
2016 Chevrolet Express 2500 LS, 6.0L Eng VIN G
Diagnostic Fault Information
2016 Chevrolet Express 2500 LS, 6.0L Eng VIN GSECTION Diagnostic Fault Information
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| Powertrain High Speed GMLAN Serial Data (+) | 1 | U0100-U02FF* | 1 | - |
| Powertrain High Speed GMLAN Serial Data (-) | 1 | U0100-U02FF* | 1 | - |
| * No communications with one or more Powertrain high speed GMLAN control modules. An open in only one Powertrain high speed GMLAN serial data circuit may allow degraded communication between the control modules. 1. No Communication With Any Powertrain High Speed GMLAN Control Module |
||||
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.