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INSPECTION PROCEDURE E-2: Keyless entry hazard warning lamp answerback function or the room lamp answerback function does not work normally. |
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|  CAUTION
Whenever the ECU is replaced, ensure that the input and output signal circuits are normal.
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| COMMENTS ON TROUBLE SYMPTOM
If the hazard warning lamp and the room lamp work normally, the ETACS-ECU may be defective.
Alternatively, it is possible that the keyless entry hazard warning lamp answerback function was disabled by the adjustment function.
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| POSSIBLE CAUSES
- Defective turn-signal lamp
- Malfunction of the room lamp
- Malfunction of the ETACS-ECU
- Damaged harness wires and connectors
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| Step 1. Check the adjustment function.
Check that the keyless entry hazard warning lamp answerback function has been enabled by using the adjustment function.
Q: Is the check result normal?
YES:
Go to Step 2  .
NO:
Enable the keyless entry hazard warning lamp answerback function by using the adjustment function. (Refer to  ).
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| Step 2. Check the operation of the hazard warning lamp.
Check that the hazard warning lamps illuminate normally.
Q: Is the check result normal?
YES:
Go to Step 3  .
NO:
Refer to Inspection Procedure M-2 "The hazard warning lamps do not illuminate  ".
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| Step 3. Check the operation of the room lamps.
Check that the room lamps illuminate normally.
Q: Is the check result normal?
YES:
Go to Step 4  .
NO:
Refer to Inspection Procedure O-2 "The front or rear room lamp does not illuminate/extinguish  ."
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| Step 4. Retest the system.
Check that the keyless entry hazard warning lamp answerback function or the room lamp answerback function work normally.
Q: Is the check result normal?
YES:
The trouble can be an intermittent malfunction (Refer to GROUP 00 -
How to Cope with Intermittent Malfunction  ).
NO:
Replace the ETACS-ECU.
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