When the right bulb of turn-signal lamp is blown, the ETACS-ECU sets diagnosis code No. B16A4.
JUDGMENT CRITERIA
The ETACS-ECU sets diagnosis code No. B16A4 under the following conditions.
With the diagnosis code not set, if there is a malfunction to the right turn-signal lamp bulb, the blown right bulb counter counts once when the illumination of hazard or turn-signal lamp (right side) is attempted.
If the blown right bulb counter reaches "3," the diagnosis code No. B16A4 is set.
PROBABLE CAUSES
Malfunction of turn-signal lamp bulb (right side)
Malfunction of the ETACS-ECU
DIAGNOSIS PROCEDURE
STEP 1. Bulb check
Check whether the bulb of turn-signal lamp which does not illuminate is normal.
Q.
Is the check result normal?
Go to Step 2.
Replace the bulb of turn-signal lamp which does not illuminate.
STEP 2. Check whether the diagnosis code is reset.
(1)Erase the diagnosis code.
(2)Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
Replace the bulb of turn-signal lamp which does not illuminate.