NO.3 TRANSMITTER ID CODE CANNOT BE REPROGRAMMED [KEYLESS ENTRY SYSTEM]
id0903d2800800
3
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Transmitter ID code cannot be reprogrammed
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DESCRIPTION
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• Malfunction in transmitter battery, transmitter, BCM circuit, or keyless receiver circuit.
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POSSIBLE CAUSE
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• Malfunction in transmitter battery, transmitter, BCM, or keyless receiver.
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Diagnostic procedure
STEP |
INSPECTION |
ACTION |
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1
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The transmitter operation indicator light (LED) illuminates when any operation using the transmitter is performed.
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Yes
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Go to Step 6.
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No
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Go to the next step.
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2
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• Visually inspect the transmitter battery for the following:
• Is there any malfunction?
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Yes
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Battery insertion direction, battery type problem:
• Properly install the battery or replace the battery with a specified one (CR1620), then go to the next step.
Battery terminal malfunction:
• Clean corrosion and soiling or repair the terminal, then go to the next step.
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No
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Go to Step 4.
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3
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• Does the keyless entry system operate properly?
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Yes
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Go to Step 6.
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No
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Go to the next step.
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4
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• Inspect while the batteries for all of the transmitters are replaced with monitor-use batteries (normal battery).
• For each transmitter, verify that the transmitter operation indicator light (LED) illuminates when a button is operated.
• Does operation indicator light (LED) for each transmitter operate?
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Yes
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Go to the next step.
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No
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If the operation indicator light (LED) does not illuminate, replace the transmitter, then go to Step 12.
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5
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Does operation indicator light (LED) for each transmitter operate?
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Yes
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Replace the battery, then go to Step 12.
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No
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Go to the next step.
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6
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• Did the customer activate the transmitter within operative area (Within 1 m {3 ft} from area around vehicle)?
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Yes
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Go to the next step.
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No
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The system is normal.
Explain to the customer that the system does not work without the system operative area.
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7
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INSPECT POWER SUPPLY FUSE
• Is the keyless receiver power supply fuse normal?
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Yes
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Go to the next step.
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No
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Install an appropriate amperage fuse, then go to Step 12.
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8
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INSPECT IF MALFUNCTION IS IN WIRING HARNESS (NO CONTINUITY BETWEEN FUSE BLOCK AND KEYLESS RECEIVER) OR ELSEWHERE
• Measure the voltage at the following keyless receiver terminal:
• Is the voltage B+?
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Yes
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Go to the next step.
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No
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Repair the wiring harness between the fuse block and keyless receiver, then go to Step 12.
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9
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INSPECT IF MALFUNCTION IS IN WIRING HARNESS (NO CONTINUITY BETWEEN KEYLESS RECEIVER AND GROUND) OR ELSEWHERE
• Is there continuity between keyless receiver terminal E and ground?
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Yes
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Go to the next step.
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No
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Repair the wiring harness between the keyless receiver and ground, then go to Step 12.
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10
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INSPECT IF MALFUNCTION IS IN WIRING HARNESS (NO CONTINUITY BETWEEN KEYLESS RECEIVER AND BCM) OR ELSEWHERE
• Disconnect the keyless receiver connector and BCM connector.
• Is there continuity between the following terminals?
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Yes
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Go to the next step.
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No
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Repair the wiring harness between the keyless receiver and BCM, then go to Step 12.
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11
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INSPECT IF MALFUNCTION IS IN WIRING HARNESS (NO CONTINUITY BETWEEN KEYLESS RECEIVER AND BCM) OR BCM
• Measure the voltage at BCM terminal C.
• Is the voltage normal?
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Yes
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Replace the BCM, then go to the next step.
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No
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Replace the keyless receiver, then go to the next step.
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12
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REINSPECT MALFUNCTION SYMPTOM AFTER REPAIR
• Does the keyless entry system operate properly?
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Yes
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Troubleshooting completed.
Explain repairs to the customer.
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No
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Reinspect the malfunction symptoms, then repeat from Step 1 if the malfunction recurs.
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