If any abnormality is found with the column-ECU, the ETACS-ECU stores the diagnosis code
No.U1530.
PROBABLE CAUSES
Malfunction of the 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 ignition switch from "LOCK" (OFF) position to "ON" position.
(3)On completion, check that the diagnosis code is reset.
Q.
Is the diagnosis code set?
Replace the lighting switch.
A poor connection, open circuit or other intermittent malfunction is present in
the LIN bus lines between the column switch and the ETACS-ECU (Refer to GROUP 00, How to Use
Troubleshooting/Inspection Service Points - How to Cope with Intermittent
Malfunctions ).
Replace the lighting switch.
A poor connection, open circuit or other intermittent malfunction is present in
the LIN bus lines between the column switch and the ETACS-ECU (Refer to GROUP 00, How to Use
Troubleshooting/Inspection Service Points - How to Cope with Intermittent
Malfunctions