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Home >> Chevrolet >> 2019 >> Traverse L >> Repair and Diagnosis >> Engine Performance >> System >> Data Communications - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> Scan Tool Does Not Communicate with Object High Speed GMLAN Device >> Diagnostic Fault Information

Diagnostic Fault Information

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
Object High Speed GMLAN Serial Data (+)
or High Speed GMLAN Serial Data (+) 4		 U0075 U0075, U0100-U02FF* U0075 -
Object High Speed GMLAN Serial Data (-)
or High Speed GMLAN Serial Data (-) 4		 U0075 U0075, U0100-U02FF* U0075 -
* An open between the X84 Data Link Connector (DLC) and the K56 Serial Data Gateway Module will only affect the communication with the scan tool. The devices will still communicate. An open in only one object high speed GMLAN serial data circuit may allow degraded communication between the devices.
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