Keyless Entry System Preliminary Inspection [Keyless Entry System]
- Perform the following preliminary inspection before troubleshooting.DIAGNOSTIC PROCEDURE
STEP INSPECTION ACTION 1 - Is an after-market system installed?
Yes Perform troubleshooting according to the after-market keyless entry system manual. No Go to the next step. 2 - Did the customer activate the keyless entry system with the key inserted into the steering lock?
Yes - Explain to the customer that the system does not work with the key inserted into the steering lock.
- Go to the next step.
No Go to the next step. 3 - Did the customer use the keyless entry system in particular area, such as being near TV towers, power plants, power lines, or factories?
Yes Attempt to lock/unlock the doors with the transmitter in a non-interference area.
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.
No Go to the next step. 4 - Are any of the following after-market electrical parts on the vehicle?
- Cellular phone
- Radio-wave equipment
- Remote engine starter
- TV
Yes Disconnect the after-market electrical part connectors and attempt to lock/unlock the doors with the transmitter.
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.
No Go to the next step. 5 - Perform the on-board diagnostic function.
(See KEYLESS ENTRY SYSTEM ON-BOARD DIAGNOSIS [KEYLESS ENTRY SYSTEM] )
- Does the on-board diagnostic function work?
Yes Go to the next step. No - Go to step 1 of troubleshooting NO. 1.
(See NO. 1 ONE OR MORE ON-BOARD DIAGNOSTIC FUNCTIONS INOPERATIVE [KEYLESS ENTRY SYSTEM] )
- Go to step 1 of troubleshooting NO. 2.
(See NO. 2 ALL ON-BOARD DIAGNOSTIC FUNCTIONS INOPERATIVE [KEYLESS ENTRY SYSTEM] )
6 - Attempt to reprogram the transmitter ID code.
- Can the transmitter ID code be reprogrammed?
Yes The system is normal. No Go to step 1 of troubleshooting NO. 3.
(See NO. 3 TRANSMITTER ID CODE CANNOT BE REPROGRAMMED [KEYLESS ENTRY SYSTEM] )