KEYLESS ENTRY SYSTEM PRELIMINARY INSPECTION [KEYLESS ENTRY SYSTEM]

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• Perform the following preliminary inspection before troubleshooting.

STEP

INSPECTION

ACTION

1

•  Is system an after-market one?

Yes

Perform troubleshooting according to after-market keyless entry system manual.

No

Go to next step.

2

•  Did customer activate keyless entry system when ignition switch was in LOCK position?

Yes

Go to next step.

No

•  Explain to customer that system does not work when ignition is in ON position.

•  Turn ignition switch to LOCK position, then go to next step.

3

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

Yes

Attempt to lock/unlock doors with transmitter in non-interference area.

If system operates:

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

If system does not operate:

•  Go to next step.

No

Go to next step.

4

•  Are any of the following after-market electrical parts on the vehicle?

―  Cellular phone

―  Radio-wave equipment

―  Remote engine starter

―  TV, etc.

Yes

Disconnect after-market electrical part connectors and attempt to lock/unlock doors with transmitter.

If system operates:

•  After-market electrical parts are interfering with keyless entry system.

If system does not operate:

•  Go to next step.

No

Go to next step.

5

•  Perform on-board diagnostic function.
(See ON-BOARD DIAGNOSTIC FUNCTION [KEYLESS ENTRY SYSTEM].)

•  Does on-board diagnostic function work?

Yes

Go to next step.

No

•  Go to Step 1 of NO. 1 ONE OR MORE ON-BOARD DIAGNOSTIC FUNCTIONS INOPERATIVE.

•  Go to Step 1 of NO. 2 ALL ON-BOARD DIAGNOSTIC FUNCTIONS INOPERATIVE.

6

•  Attempt to reprogram transmitter ID code.

•  Can transmitter ID code be reprogrammed?

Yes

System is normal now.

No

Go to Step 1 of troubleshooting NO. 3 TRANSMITTER ID CODE CANNOT BE REPROGRAMMED.

STEP	INSPECTION		ACTION
1	• Is system an after-market one?	Yes	Perform troubleshooting according to after-market keyless entry system manual.
1	• Is system an after-market one?	No	Go to next step.
2	• Did customer activate keyless entry system when ignition switch was in LOCK position?	Yes	Go to next step.
2		No	• Explain to customer that system does not work when ignition is in ON position. • Turn ignition switch to LOCK position, then go to next step.
3	• Did customer use keyless entry system in particular area, such as being near TV towers, power plants, power lines, or factories?	Yes	Attempt to lock/unlock doors with transmitter in non-interference area. If system operates: • Area of operation is bad. Explain effect of outside interference on transmitter to customer. If system does not operate: • Go to next step.
3		No	Go to next step.
4	• Are any of the following after-market electrical parts on the vehicle? ― Cellular phone ― Radio-wave equipment ― Remote engine starter ― TV, etc.	Yes	Disconnect after-market electrical part connectors and attempt to lock/unlock doors with transmitter. If system operates: • After-market electrical parts are interfering with keyless entry system. If system does not operate: • Go to next step.
4		No	Go to next step.
5	• Perform on-board diagnostic function. (See ON-BOARD DIAGNOSTIC FUNCTION [KEYLESS ENTRY SYSTEM].) • Does on-board diagnostic function work?	Yes	Go to next step.
5		No	• Go to Step 1 of NO. 1 ONE OR MORE ON-BOARD DIAGNOSTIC FUNCTIONS INOPERATIVE. • Go to Step 1 of NO. 2 ALL ON-BOARD DIAGNOSTIC FUNCTIONS INOPERATIVE.
6	• Attempt to reprogram transmitter ID code. • Can transmitter ID code be reprogrammed?	Yes	System is normal now.
6		No	Go to Step 1 of troubleshooting NO. 3 TRANSMITTER ID CODE CANNOT BE REPROGRAMMED.