INSPECTION PROCEDURE 3: When the Ignition Switch is Turned to the "ON" Position (Engine Stopped), the ABS Warning Lamp does not Illuminate. INSPECTION PROCEDURE 4: The ABS Warning Lamp Remains Illuminated After the Engine is Started.

OPERATION

ABS-ECU send the illumination signal of ABS warning lamp to the combination meter via the CAN communication.
ABS-ECU operates the ABS warning lamp and the ABS warning lamp for three seconds after the ignition switch is turned "ON" position for bulb check.

COMMENT

This may be caused by faults in the CAN bus line, the combination meter or the ABS-ECU.

PROBABLE CAUSES

Malfunction of the combination meter
Damaged harness, connector
Malfunction of the ABS-ECU

DIAGNOSIS

STEP 1. M.U.T.-III CAN bus diagnostics

Use M.U.T.-III to diagnose the CAN bus lines.

caution

Before connecting or disconnecting the M.U.T.-III, turn the ignition switch to the "LOCK" (OFF) position.

(1)Connect M.U.T.-III to the 16-pin diagnosis connector.
(2)Turn the ignition switch to the "ON" position.
(3)Diagnose the CAN bus line.
(4)Turn the ignition switch to the "LOCK" (OFF) position.

Q. Is the check result normal?

Go to Step 2.

Repair the CAN bus lines. (Refer to GROUP 54F, Diagnosis-Can Bus Diagnostic Chart

.) Then go to Step 4.

STEP 2. Check whether the diagnosis code is reset.

caution

Before connecting or disconnecting the M.U.T.-III, turn the ignition switch to the "LOCK" (OFF) position.

(1)Turn the ignition switch to the "ON" position.
(2)Erase the diagnosis code.
(3)Turn the ignition switch to the "LOCK" (OFF) position.
(4)Turn the ignition switch to the "ON" position.
(5)Check if the diagnosis code is set.
(6)Turn the ignition switch to the "LOCK" (OFF) position.

Q. Is any diagnosis code set?

Refer to

, Diagnosis Code Chart. Then go to Step 4.

Go to Step 3.

STEP 3. M.U.T.-III other system diagnosis code

(1)

caution

Before connecting or disconnecting the M.U.T.-III, turn the ignition switch to the "LOCK" (OFF) position.

Connect M.U.T.-III to the 16-pin diagnosis connector.
(2)Turn the ignition switch to the "ON" position.
(3)Check for Combination meter system diagnosis code.
(4)Turn the ignition switch to the "LOCK" (OFF) position.
(5)Disconnect M.U.T.-III.

Q. Is code No.U1102 set?

Replace the hydraulic unit (integrated with TCL/ASC-ECU). Then go to Step 4.

Replace the combination meter assembly. (Refer to GROUP 54A, Combination Meter Assembly

.) Then go to Step 4.

STEP 4. Retest the system

Q. Turn the ignition switch to the "ON" position. Do the ABS warning lamp illuminate for three seconds, and then go out after the engine starts?

	The procedure is complete.

	Return to Step 1.