STEP
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INSPECTION
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ACTION
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1
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• Is an after-market system installed?
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Yes
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Perform troubleshooting according to after-market keyless entry system manual.
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No
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Go to the next step.
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2
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• Did the customer activate the keyless entry system with the key inserted into the steering lock?
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Yes
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Go to the next step.
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No
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• Explain to the customer that the system does not work with the key inserted into the steering lock.
• Go to the next step.
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3
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• Did the customer use the keyless entry system in particular area, such as being near TV towers, power plants, power lines, or factories?
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Yes
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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.
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No
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Go to the next step.
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4
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• Are any of the following after-market electrical parts on the vehicle?
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– Cellular phone
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– Radio-wave equipment
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– Remote engine starter
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– TV, etc.
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Yes
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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.
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No
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Go to the next step.
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5
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• Perform the on-board diagnostic function.
• Does the on-board diagnostic function work?
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Yes
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Go to the next step.
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No
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• 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.
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6
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• Attempt to reprogram the transmitter ID code.
• Can the transmitter ID code be reprogrammed?
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Yes
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The system is normal.
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No
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Go to Step 1 of troubleshooting NO. 3 TRANSMITTER ID CODE CANNOT BE REPROGRAMMED.
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