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Diagnostic procedure

NO. 3 TRANSMITTER ID CODE CANNOT BE REPROGRAMMED DIAGNOSTIC PROCEDURE

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