Use Diagnostic Trouble Codes (DTCs) (from the DTC checks) in the table below to determine the trouble area and proper inspection procedure. The Supplemental Restraint System (SRS) diagnostic trouble code chart is shown below as an example.

Symptom simulation
Problem symptoms tableAdjustment
1. VEHICLE PREPARATION FOR FOGLAMP AIM ADJUSTMENT
(a) Prepare the vehicle:
Ensure there is no damage or deformation to the body around the
headlamps.
Fill the fuel tank.
Make sure that the oil is filled to the specified level.
Make sure that the coolant is filled to the specified level ...