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STEP
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INSPECTION
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ACTION
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1
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INSPECT TRANSMITTER BATTERY INSTALLATION AND TYPE
• Visually inspect transmitter battery.
• Are below items okay?
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- Transmitter battery installation (correct polarity)
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- Battery type (CR2025)
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Yes
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Go to next step.
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No
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Set transmitter battery properly or replace with specified transmitter battery (CR2025), then go to Step 8.
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2
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INSPECT TRANSMITTER BATTERY TERMINALS FOR RUST AND POOR CONNECTION
• Visually inspect transmitter.
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- Is there rust on transmitter battery terminals (positive or negative pole)?
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- Is there poor connection between terminals and battery?
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Yes
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Replace transmitter battery or repair transmitter battery terminal, then go to Step 8.
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No
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Go to next step.
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3
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INSPECT TRANSMITTER BATTERY
• Inspect transmitter battery.
• Is battery voltage normal?
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Yes
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Go to next step.
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No
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Replace transmitter battery, then go to Step 8.
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4
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INSPECT KEYLESS UNIT BRACKET INSTALLATION
• Is keyless unit bracket installed securely?
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Yes
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Go to next step.
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No
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Install bracket securely, then go back to Step 7 of keyless entry system preliminary inspection.
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5
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INSPECT GROUND SCREW INSTALLATION BETWEEN KEYLESS UNIT AND KEYLESS UNIT BRACKET
• Are keyless unit and keyless unit bracket installed securely by ground screw?
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Yes
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Go to next step.
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No
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Install screw securely, then go back to Step 7 of keyless entry system preliminary inspection.
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6
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VERIFY WHETHER MALFUNCTION IS IN TRANSMITTER BATTERY OR ELSEWHERE
• Replace with a known good transmitter battery.
• Does keyless entry system operate properly?
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Yes
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Replace transmitter battery, then go to Step 8.
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No
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Go to next step.
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7
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VERIFY WHETHER MALFUNCTION IS IN TRANSMITTER OR KEYLESS UNIT
• Reprogram transmitter ID codes using another known good transmitter.
• Does keyless entry system operate okay?
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Yes
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Replace transmitter and reprogram transmitter ID code, then go to next step.
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No
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Replace keyless unit and reprogram transmitter ID code, then go to next step.
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8
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RECHECK MALFUNCTION SYMPTOM AFTER REPAIR
• Does keyless entry system operate properly?
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Yes
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Troubleshooting completed.
Explain repairs to customer.
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No
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Recheck malfunction symptoms, then repeat from Step 1 if malfunction recurs.
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