Verification of Vehicle Repair

Head Unit
U1540 Wakeup Line Test Failed at Amplifier Unit - Verification of Vehicle Repair

Verification of Vehicle Repair

After a repair, it is essential to verify that the fault has been corrected.
1. Connect scantool and selet "Diagnostic Trouble Codes(DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present?