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Diagnostic Fault Information

WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. 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
Low Speed GMLAN Serial Data 1 U0100-U02FF* 1 -
Ground (X84 Data Link Connector terminal 5) - 1* - -
* An open between the X84 Data Link Connector (DLC) and the first splice pack/device will only affect the communication with the scan tool.
1. No communication with any low speed GMLAN device
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