Inspection Procedures

1. Connect the Hi-Scan (pro) to the data link connector and turn the ignition switch ON.
2. Verify that the normal code is output.

1. Is the normal code output? Yes: Go to next step. 
2. No: Erase the DTC and recheck using Hi-Scan (pro).

1. OK 
2. NG: Repair or replace the wheel speed sensor.

1. Check that stop lamp lights up when brake pedal is depressed and turns off when brake pedal is released.
2. Measure the voltage between terminal 18 of the ABS control module harness side connector and body ground when brake pedal is depressed. Specification: approximately B+

1. Is the voltage within specification? Yes: Go to next step. 
2. No: Repair the stop lamp switch or repair an open in the wire between the ABS control module and the stop lamp switch.

Fig 1: Testing Stop Lamp Switch Circuit

Courtesy of KIA MOTORS AMERICA, INC.

Refer to the hydraulic lines.

1. OK 
2. NG: Repair the hydraulic lines for leakage.

If the problem is still occurring, replace the ABS control module.