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 |
|---|---|---|---|---|
| Forward Collision Alert Indicators Ignition | 1 | 1 | - | - |
| Forward Collision Alert Switch Signal | P0580, P0592 | P0592 | P0593 | - |
| Forward Collision Alert Switch Dimming Control | 3 | 3 | 3 | - |
| Forward Collision Alert Indicators Control | 2 | 1 | 1 | - |
| Forward Collision Alert Indicators Ground | - | 1 | - | - |
| 1. Forward Collision Alert Indicators inoperable 2. Forward Collision Alert Indicators on all the time 3. Forward Collision Alert Indicator dimming malfunction |
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