The ETACS-ECU will set diagnosis code No. U1530 when abnormal signals are received from
the column switch (column switch ECU).
PROBABLE CAUSES
Faulty lighting switch
DIAGNOSIS PROCEDURE
Check whether the diagnosis code is reset.
Check again if the diagnosis code is set to the ETACS-ECU.
(1)Erase the diagnosis code.
(2)Turn the erectric motor switch from "LOCK" (OFF) position to "ON" position.
(3)Check if diagnosis code is set.
Q.
Is the diagnosis code set?
Replace the lighting switch.
A poor connection, open circuit, or other intermittent malfunctions in the LIN
bus lines between the column switch and the ETACS-ECU (Refer to GROUP 00 -
How to Cope
with Intermittent Malfunction ).
Replace the lighting switch.
A poor connection, open circuit, or other intermittent malfunctions in the LIN
bus lines between the column switch and the ETACS-ECU (Refer to GROUP 00 -
How to Cope
with Intermittent Malfunction 