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.
On-vehicle inspection
1. CHECK THROTTLE BODY
(a) Listen to the throttle control motor operating sounds.
Turn the ignition switch ON.
When pressing the accelerator pedal position sensor lever, listen
to the running motor. Make sure
no friction noise comes from the motor.
If friction noise exists ...