LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> GMC >> 2015 >> Yukon SLE, 4WD >> Repair and Diagnosis >> Engine Performance >> System >> Data Communication System - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> DTC U18A2: Lost Communication with Fuel Pump Driver Control Module >> Diagnostic Fault Information
October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Diagnostic Fault Information

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
B+ U18A2 U18A2 - -
Ignition U18A2 U18A2 - -
Accessory Wake Up Serial Data U1814, U2099 U18A2 - -
Powertrain High Speed GMLAN Serial Data (+) U0074* U0074* U0074* -
Powertrain High Speed GMLAN Serial Data (-) U0074* U0074* U0074* -
Ground - U18A2 - -
* Other DTCs may set with this fault.
scientia non olet · About LEMON Manuals