Test Mode Procedure

ANTI-LOCK BRAKE SYSTEM: TEST MODE PROCEDURE

TEST MODE PROCEDURE

1. WARNING LIGHT BULB CHECK

NOTE: When releasing the parking brake, set the chocks to hold the vehicle for safety.

HINT: When the parking brake is applied or the level of the brake fluid is low, the BRAKE warning light comes on.

(a) Release the parking brake lever.





(b) Check that the ABS warning light and BRAKE warning light comes on when the ignition switch is turned on and will go off in about 3 seconds.

(c) If the warning lights do not light, or remain on, the bulb has burned out or the ABS ECU may be defective.
2. SENSOR SIGNAL CHECK (TEST MODE)
(USING TECHSTREAM)
If the ignition switch is turned from the ON to the ACC or LOCK position during SIGNAL CHECK (test mode), DTC of sensor check function will be erased.
(a) Procedures for sensor signal check
(1) Turn the ignition switch off.
(2) Check that the shift lever is in P position.
(3) Connect Techstream to the DLC3.
(4) Start the engine.
(5) Operate Techstream in Signal Check (test mode).
(6) Check that the ABS warning light blinks.

HINT: If the ABS warning light does not blink, inspect the ABS warning light circuit.





(b) Start the sensor signal check.
(1) Drive vehicle straight forward.
Drive the vehicle at a speed of 28 to 34 mph (45 to 55 km/h) or higher for several seconds.





HINT: The sensor check may not be completed if the vehicle has its wheel spun or its steering wheel steered during this check.

(2) Stop the vehicle.
(c) Signal check results.





(d) Read the DTCs.

HINT:
- If the check result is OK, the ABS warning light blink goes off when the brake pedal is once depressed.
- See the list of DTC (Refer to step 3).
- If every sensor is normal, there is a normal system code output. (A cycle of 0.25 sec. ON and 0.25 sec. OFF is repeated.)
- If 2 or more malfunctions are indicated at the same time, the lowest numbered code will be displayed 1st.





(1) Normal system code.

(2) Malfunction code.





3. DTC of speed sensor check function:





HINT: The codes in this table are output only in TEST MODE.