Diagnostic Fault Information
WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. 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 |
|---|---|---|---|---|
| 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 |
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