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 tableStarting the engine
Ensure that the shift lever is in p and depress the brake pedal.
Touch the toyota emblem side
of the electronic key to the
engine switch.
When the electronic key is
detected, a buzzer sounds and the
engine switch will turn to ignition
on mode.
When the smart key system is
deacti ...