Keyless Entry System Preliminary Inspection

• Is an after-market system installed?

• Did the customer activate the keyless entry system with the key inserted into the steering lock?

• Explain to the customer that the system does not work with the key inserted into the steering lock.
• Go to the next step.

• Did the customer use the keyless entry system in particular area, such as being near TV towers, power plants, power lines, or factories?

If system operates: 

• Area of operation is suspect. Explain effect of outside interference on the transmitter to the customer.

  If system does not operate: 

• Go to the next step.

• Are any of the following after-market electrical parts on the vehicle?
  • Cellular phone
  • Radio-wave equipment
  • Remote engine starter
  • TV
  • Other

If system operates: 

• The after-market electrical parts are interfering with the keyless entry system.

  If system does not operate: 

• Go to the next step.

• Perform the on-board diagnostic function.

  (See KEYLESS ENTRY SYSTEM ON-BOARD DIAGNOSIS  )

• Does the on-board diagnostic function work?

• Go to Step 1 of troubleshooting NO. 1.

  (See NO.1 ONE OR MORE ON-BOARD DIAGNOSTIC FUNCTIONS INOPERATIVE  )

• Go to Step 1 of troubleshooting NO. 2.

  (See NO.2 ALL ON-BOARD DIAGNOSTIC FUNCTIONS INOPERATIVE  )

• Attempt to reprogram the transmitter ID code.
• Can the transmitter ID code be reprogrammed?