NO.3 TRANSMITTER ID CODE CANNOT BE REPROGRAMMED [KEYLESS ENTRY SYSTEM]

id0903d2800800

3 | Transmitter ID code cannot be reprogrammed
DESCRIPTION | • Malfunction in transmitter battery, transmitter, BCM circuit, or keyless receiver circuit.
POSSIBLE CAUSE | • Malfunction in transmitter battery, transmitter, BCM, or keyless receiver.

Diagnostic procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 | The transmitter operation indicator light (LED) illuminates when any operation using the transmitter is performed. | Yes | Go to Step 6.
No | Go to the next step.
2 | • Visually inspect the transmitter battery for the following: (See TRANSMITTER BATTERY REPLACEMENT [KEYLESS ENTRY SYSTEM].) ― Battery direction (polarity) ― Battery type (CR1620) ― Corrosion, soiling, deformation of battery terminals (plus/minus terminals). ― Contact malfunction between the battery terminal and battery when battery is inserted • Is there any malfunction? | Yes | 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.
No | Go to Step 4.
3 | • Does the keyless entry system operate properly? | Yes | Go to Step 6.
No | Go to the next step.
4 | Note • Use a new monitor battery (normal battery) or one from another vehicle which operates normally. • Inspect for all transmitters. • Inspect while the batteries for all of the transmitters are replaced with monitor-use batteries (normal battery). (See TRANSMITTER BATTERY REPLACEMENT [KEYLESS ENTRY SYSTEM].) • 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? | Yes | Go to the next step.
No | If the operation indicator light (LED) does not illuminate, replace the transmitter, then go to Step 12.
5 | Note • Inspect for all transmitters. • Inspect while the batteries for all of the transmitters are replaced with monitor-use batteries (normal battery). Does operation indicator light (LED) for each transmitter operate? | Yes | Replace the battery, then go to Step 12. (See TRANSMITTER BATTERY REPLACEMENT [KEYLESS ENTRY SYSTEM].)
No | Go to the next step.
6 | • Did the customer activate the transmitter within operative area (Within 1 m {3 ft} from area around vehicle)? | Yes | Go to the next step.
| No | The system is normal. Explain to the customer that the system does not work without the system operative area.
7 | INSPECT POWER SUPPLY FUSE • Is the keyless receiver power supply fuse normal? | Yes | Go to the next step.
No | Install an appropriate amperage fuse, then go to Step 12.
8 | 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: ― Power supply signal (terminal A) • Is the voltage B+? | Yes | Go to the next step.
No | Repair the wiring harness between the fuse block and keyless receiver, then go to Step 12.
9 | 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? | Yes | Go to the next step.
No | Repair the wiring harness between the keyless receiver and ground, then go to Step 12.
10 | 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? ― 7I (BCM connector)—C (keyless receiver connector) | Yes | Go to the next step.
No | Repair the wiring harness between the keyless receiver and BCM, then go to Step 12.
11 | INSPECT IF MALFUNCTION IS IN WIRING HARNESS (NO CONTINUITY BETWEEN KEYLESS RECEIVER AND BCM) OR BCM • Measure the voltage at BCM terminal C. ― When transmitter operated: • Any transmitter button is operated: 0.5 V • Any transmitter button is operated: 3.5 V • Is the voltage normal? | Yes | Replace the BCM, then go to the next step.
No | Replace the keyless receiver, then go to the next step.
12 | REINSPECT MALFUNCTION SYMPTOM AFTER REPAIR • Does the keyless entry system operate properly? | Yes | Troubleshooting completed. Explain repairs to the customer.
No | Reinspect the malfunction symptoms, then repeat from Step 1 if the malfunction recurs.