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Home >> Chevrolet >> 2014 >> Traverse LS, 4D Utility >> Repair and Diagnosis >> Engine Performance >> System >> Data Communication System >> Diagnostic Information and Procedures >> Scan Tool Does Not Communicate with Low Speed GMLAN Device >> Diagnostic Fault Information

Diagnostic Fault Information

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
Low Speed GMLAN Serial Data (+) 1 2* 1 -
Ground (DLC, terminal 5) - 1* - -
*An open between the data link connector (DLC) and JX 205 or DLC terminal 5 ground will only effect the communication with the scan tool. See Diagnostic Aids .
1. No communication on any low speed GMLAN module
2. No communication on a specific low speed GMLAN module or group of modules
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