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Diagnostic Procedure

NO. 3 TRANSMITTER ID CODE CANNOT BE REPROGRAMMED (KEYLESS ENTRY SYSTEM) DIAGNOSTIC PROCEDURE

Step INSPECTION Action
1 Is the customer's keyless entry system standard equipment? Yes Go to the next step.
No Perform troubleshooting following the separate service Information.
2 Does the on-board diagnosis function operate? Yes Go to the next step.
No Perform symptom troubleshooting No. 1.
(See NO. 1 ONE OR MORE ON-BOARD DIAGNOSTIC FUNCTIONS INOPERATIVE [KEYLESS ENTRY SYSTEM] .)
3 Do all doors lock/unlock using the transmitter? Yes Go to the next step.
No Perform symptom troubleshooting No. 2.
(See NO. 2 ALL ON-BOARD DIAGNOSTIC FUNCTIONS INOPERATIVE [KEYLESS ENTRY SYSTEM] .)
4 Perform ID number updating following the procedure.
(See TRANSMITTER ID CODE REGISTRATION [KEYLESS ENTRY SYSTEM] .)
Can the ID number be updated?		 Yes System is normal.
No Go to the next step.
5 Inspect the keyless receiver.
  • Is the keyless receiver power supply voltage normal?
    • Power supply (+B) (terminal A)
 Yes Go to the next step.
No
  • Inspect for a burnt fuse (ROOM 15 A)
  • Inspect the power supply system wiring harness for an open or short circuit.
6 Inspect the keyless receiver.
  • Is the keyless receiver grounded normally?
    • 0 V  (terminal E)
 Yes Go to the next step.
No Inspect the ground system wiring harness for an open circuit.
7 Switch the ignition to off.
Disconnect the negative battery cable.
Disconnect the keyless receiver connector (6-pin) and the BCM connector (24-pin).
  • Inspect the wiring harness between the following terminals for an open or short circuit.
    • Terminal D to 6W
    • Is it normal?
 Yes Go to the next step.
No Repair or replace the wiring harness between the keyless receiver connector and the BCM connector, then go to the next step.
8 Replace the keyless receiver.
(See KEYLESS RECEIVER REMOVAL/INSTALLATION [KEYLESS ENTRY SYSTEM] .)
  • Can the ID number be updated?
 Yes Troubleshooting completed.
No Replace the BCM, then go to the next step.
(See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION .)
9 Can the ID number be updated?
(See TRANSMITTER ID CODE REGISTRATION [KEYLESS ENTRY SYSTEM] .)		 Yes Troubleshooting completed.
No Verify the malfunction, then go to Step 1 if it recurs.
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