Kia Sedona (2008 year). Instruction — part 5

INSPECTION PROCEDURES

DTC INSPECTION

1. Connect the Scan Tool with the data link connector and turn the ignition switch ON.

2. Verify that the system is operating to specifications. Is the system operating to specifications?

NO



Check the power source circuit.

YES



Erase the DTC and recheck using Scan Tool.

CHECK THE POWER SOURCE CIRCUIT.

1. Disconnect the connector from the ABS control module.

2. Turn the ignition switch ON, measure the voltage between terminal 18 of the ABS control module

harness side connector and body ground.

Specification: approximately B+

Is the voltage within specification?

YES



Check the ground circuit.

NO



Check the harness or connector between the fuse (10A) in the engine compartment junction block
and the ABS control module. Repair if necessary.

Brake operation varies depending on driving
conditions and road surface conditions, so diagnosis
can be difficult. However if a normal DTC is
displayed, check the following probable cause.
When the problem is still occurring, replace the
ABS control module.



Inoperative power source circuit



Inoperative wheel speed sensor circuit



Inoperative hydraulic circuit for leakage



Inoperative HECU

2008 Kia Sedona

2008 BRAKES ABS (Anti-Lock Brake System) - Sedona

Microsoft

Saturday, May 22, 2010 6:52:41 PM

Page 17

© 2006 Mitchell Repair Information Company, LLC.

Fig. 13: Checking Harness Or Connector Between Fuse Engine Compartment Junction Block And
ABS Control Module
Courtesy of KIA MOTORS AMERICA, INC.

CHECK THE GROUND CIRCUIT.

1. Disconnect the connector from the ABS control module.

2. Check for continuity between terminals 1,4 of the ABS control module harness side connector and ground

point.

Is there continuity?

YES



Check the wheel speed sensor circuit.

NO



Repair an open in the wire and ground point.

Fig. 14: Checking Continuity Between Terminals ABS Control Module Harness Side Connector
And Ground Point
Courtesy of KIA MOTORS AMERICA, INC.

2008 Kia Sedona

2008 BRAKES ABS (Anti-Lock Brake System) - Sedona

Microsoft

Saturday, May 22, 2010 6:52:41 PM

Page 18

© 2006 Mitchell Repair Information Company, LLC.

CHECK THE WHEEL SPEED SENSOR CIRCUIT.

Refer to the DTC troubleshooting procedures .

Is the system operating to specifications?

YES



Check the hydraulic circuit for leakage.

NO



Repair or replace the wheel speed sensor.

CHECK THE HYDRAULIC CIRCUIT FOR LEAKAGE.

Refer to the hydraulic lines .

Inspect leakage of the hydraulic lines.

Is the system operating to specifications?

YES



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

NO



Replace the leaking hydraulic lines.

ABS DOES NOT OPERATE (INTERMITTENTLY)

DETECTING CONDITION

DETECTING CONDITION CHART

INSPECTION PROCEDURES

DTC INSPECTION

Trouble Symptoms

Possible Cause

Brake operation varies depending on driving
conditions and road surface conditions, so diagnosis
can be difficult. However if a normal DTC is
displayed, check the following probable cause.
When the problem is still occurring, replace the
ABS control module.



Inoperative power source circuit



Inoperative wheel speed sensor circuit



Inoperative hydraulic circuit for leakage



Inoperative HECU

2008 Kia Sedona

2008 BRAKES ABS (Anti-Lock Brake System) - Sedona

Microsoft

Saturday, May 22, 2010 6:52:41 PM

Page 19

© 2006 Mitchell Repair Information Company, LLC.

1. Connect the Scan Tool with the data link connector and turn the ignition switch ON.

2. Verify that the system is operating to specifications. Is the system operating to specifications?

NO



Check the wheel speed sensor circuit.

YES



Erase the DTC and recheck using Scan Tool.

CHECK THE WHEEL SPEED SENSOR CIRCUIT.

Refer to the DTC troubleshooting procedures .

Is the system operating to specifications?

YES



Check the stop lamp switch circuit.

NO



Repair or replace the wheel speed sensor.

CHECK THE STOP LAMP SWITCH CIRCUIT.

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 20 of the ABS control module harness side connector and body

ground when brake pedal is depressed.

Specification: approximately B+

Is the voltage within specification?

YES



Check the hydraulic circuit for leakage.

NO



Repair the stop lamp switch. Repair an open in the wire between the ABS control module and the stop
lamp switch.

2008 Kia Sedona

2008 BRAKES ABS (Anti-Lock Brake System) - Sedona

Microsoft

Saturday, May 22, 2010 6:52:41 PM

Page 20

© 2006 Mitchell Repair Information Company, LLC.