Keyless Entry System Preliminary Inspection [Keyless Entry System]

WARNING: This page is about a different car, the 2007 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.

Perform the following preliminary inspection before troubleshooting.

TROUBLESHOOTING CHART

STEP	INSPECTION		ACTION
1	Is an after-market system installed?	Yes	Perform troubleshooting according to the after-market keyless entry system manual.
1	Is an after-market system installed?	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.
2		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.
3		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 Other	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.
4		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.
5		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.
6		No	Go to Step 1 of troubleshooting NO. 3. (See NO.3 TRANSMITTER ID CODE CANNOT BE REPROGRAMMED [KEYLESS ENTRY SYSTEM] ).