Sierra 1500 4WD V8-6.0L (2007)
5. Verify that DTC B1E3A does not reset as Current.
Important
Ensure each leg of the circuit is tested since the 8 volt reference circuit feeds all the sensors in parallel.
‹› If DTC B1E3A does set, test the 8 volt reference circuit for a short to voltage, short to ground or an open/high resistance. Repair the circuit as
necessary. Depending on the model year of the vehicle, refer to Body > Wiring Systems > Diagnostic Information and Procedures > Wiring
Repairs OR Power and Signal Distribution > Wiring Systems and Power Management > Diagnostic Information and Procedures > Wiring
Repairs in SI.
‹› If DTC B1E3A does not set proceed to Step 6.
6. Install each object sensor harness connector one at a time, checking for DTCs immediately after each sensor is connected. Verify DTC B1E3A
does not set as Current.
‹› If DTC B1E3A does set, replace the object sensor that was connected immediately before the DTC set.
7. Perform the diagnostic repair verification after completing the diagnostic procedure. Refer to Diagnostic Repair Verification in SI.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
