Code No.U1550: Auto lamp sensor fail
Code No.U1551: Rain sensor fail
COMMENTS ON TROUBLE SYMPTOM
- When the "auto lamp sensor malfunction" signal is contained in the signal from the rain light sensor, the ETACS-ECU stores the diagnosis code No. U1550.
- When the "rain sensor malfunction" signal is contained in the signal from the rain light sensor, the ETACS-ECU stores the diagnosis code No. U1551.
PROBABLE CAUSES
- Malfunction of the rain light sensor
DIAGNOSIS PROCEDURE
Check whether the diagnosis code is reset.
Check if diagnosis code is set to the ETACS-ECU.
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(1)Erase the diagnosis code.
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(2)Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
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(3)On completion, check that the diagnosis code is reset.
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Q.
Is the diagnosis code set?
Replace the rain light sensor and check if the diagnosis code is set.
The procedure is complete.