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

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:
―  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).
•  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.
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.