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
• Are any of the following after-market
electrical parts on the vehicle?
Cellular phone
Radio-wave equipment
Remote engine starter
TV, etc.
No Go to the next step.
Yes Go to the next step.
5
• Perform the on-board diagnostic function.
(See KEYLESS ENTRY SYSTEM ON-
BOARD DIAGNOSIS .)
• Does the on-board diagnostic function work?
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.
Yes The system is normal.
6
• Attempt to reprogram the transmitter ID code.
• Can the transmitter ID code be
reprogrammed?
No
Go to Step 1 of troubleshooting NO. 3
TRANSMITTER ID CODE CANNOT BE
REPROGRAMMED.
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