System Inspection

SYSTEM INSPECTION
1. Verify that the battery is fully charged. With the ignition switch on, verify that the ABS warning light goes out after 4 seconds.
2. If the light stays on after 4 seconds, the ABS Control Module (CM) detects a failure and will not activate the ABS Hydraulic Unit (HU). Follow the troubleshooting procedures.
3. Turn the ignition switch off.
4. On level ground, jack up the vehicle and support it evenly on safety stands. Shift the transaxle to neutral or N position.
5. Release the parking brake.
6. Rotate the wheels by hand, and inspect for brake drag.

Caution: Connecting the wrong data link connector (DLC) terminals may possibly cause a malfunction. Carefully connect the specified terminals only.





7. Use a jumper wire to short terminal TBS of the DLC to body GND.
8. Depress the brake pedal, and have an assistant verify that the right front wheel does not turn.
9. With the brake pedal still depressed, turn the ignition switch on and verify that the brake is released momentarily (approx. 0.5 sec.) and that the wheel turns when pressure-reduction operates.





10. Inspect the operation of the remaining wheels in order: right front, left front, right rear, left rear.
11. Turn the ignition switch off and remove the jumper wire.
12. Replace the HU if wheels do not rotate. Inspect brake piping to HU if wheels rotate but their rotation order is not correct.

Note:
- If Steps 9 and 10 show correct operation, the following systems are okay:
1. Brake piping to HU
2. Braking system, including HU
3. Electrical system in HU (solenoid, ABS motor, etc.)
4. ABS CM, its output system and harness
- The following are not inspected with the above steps
1. Input system and harness of ABS CM
2. Intermittent failure
3. Fluid leakage