STEP 2. Check of short to power supply circuit, short to ground circuit in W.AS line between the windshield wiper motor connector and ETACS-ECU connector.
STEP 3. Check whether the DTC is set again.
Check again if DTC No.B1E2D is set in the ETACS-ECU.(1) Erase the DTC.
(2) Turn the ignition switch from the LOCK (OFF) position to the ON position.
(3) Turn the wiper switch to the LO or HI position and hold it for at least three seconds.
(4) Check if DTC is set.
Is the DTC set?
Replace the ETACS-ECU. Intermittent malfunction (Refer to GROUP 00, How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction ).