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Inspection Procedure

NOTE:
  • When using the Techstream with the vehicle engine switch off, connect the Techstream to the vehicle and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Key. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle.
  • The smart key system uses multiplex communication. First perform the inspections in "How to Proceed with Troubleshooting" to confirm that there are no communication malfunctions before proceeding with troubleshooting. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [05/2013 - ] .
  • Before replacing the certification ECU (smart key ECU assembly), steering lock ECU (steering lock actuator assembly), ID code box (immobilizer code ECU), refer to the smart key system (for Entry Function). Refer to PRECAUTION [05/2013 - ] .
  • If the smart key system is disabled through the customize function, enable the system before performing troubleshooting. Refer to CUSTOMIZE PARAMETERS [05/2013 - ] .
  • If the steering lock ECU (steering lock actuator assembly) is replaced, be sure to confirm that the steering is unlocked by turning the steering wheel to the left and right before starting the engine. If the steering is locked for any reason, open and close a door with the engine switch off, and then unlock the steering by pressing the engine switch. This prevents the engine from starting while the steering is locked.
  • After completing repairs, confirm that the problem does not reoccur.
  • Inspect the fuses of circuits related to this system before performing the following inspection procedure.
  • Before carrying out troubleshooting, check the number of the electrical key transmitter sub-assemblies registered

HINT: 

If the brake pedal is repeatedly depressed while the engine is stopped, the brake booster pressure is released and the force required to depress the brake pedal to illuminate the stop lights increases.*

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