Kia Carnival (2009+). Manual — part 381

Trouble Symptoms

Possible Cause

When communication with Scan Tool is not possible, the cause may
be probably an open in the HECU power circuit or an open in the
diagnosis output circuit.

- An open in the wire
- Inoperative HECU
- Inoperative power source circuit

INSPECTION PROCEDURES

CHECK FOR CONTINUITY IN THE DIAGNOSIS LINE

1. Disconnect the connector from the ABS control module.

2. Check for continuity between terminals 11 of the ABS control module connector and 1 of the data link connector.

Is there continuity?

▶ Check the power source of ABS control module.

▶ Repair an open in the wire.

CHECK THE POWER SOURCE OF ABS CONTROL MODULE

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 voltage within specification?

▶ Check for poor ground.

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

CHECK FOR POOR GROUND

Check for continuity between terminal 5 of the data link connector and ground point.

▶ Replace the ABS control module and recheck.

▶ Repair an open in the wire or poor ground.

DETECTING CONDITION

Trouble Symptoms

Possible Cause

When current flows in the HECU the ABS warning lamp turns from
ON to OFF as the initial check.Therefore if the lamp does not light up,
the cause may be an open in the lamp power supply circuit, a blown
bulb, an open in the both circuits between the ABS warning lamp and
the HECU, and the inoperative HECU.

- Inoperative ABS warning lamp bulb
- Blown No.2 fuse (10A) in the engine

compartment junction block

- Inoperative ABS warning lamp module
- Inoperative HECU

INSPECTION PROCEDURES

PROBLEM VERIFICATION
Disconnect the connector from the ABS control module and turn the ignition switch ON.
Does the ABS warning lamp light up?

▶ It is normal. Recheck the ABS control module.

▶ Check the power source for the ABS warning lamp.

CHECK THE POWER SOURCE FOR THE ABS WARNING LAMP

1. Disconnect the instrument cluster connector and turn the ignition switch ON.

2. Measure the voltage between terminal 8 of the cluster harness side connector and body ground.

Specification: approximately B+

Is voltage within specification?

▶ Repair bulb or instrument cluster assembly.

▶ Check for blown fuse.

CHECK FOR BLOWN FUSE

Check continuity of fuse (10A) from the engine compartment junction block.
Is there continuity?

▶ Repair an open in the wire between ABS fuse and 1 of cluster connector.

▶ Replace the blown fuse.

DETECTING CONDITION

Trouble Symptoms

Possible Cause

If the HECU detects trouble, it lights the ABS warning lamp while at
the same time prohibiting ABS control. At this time, the HECU
records a DTC in memory.Even though the normal code is output, the
ABS warning lamp remains ON, then the cause may be probably an
open or short in the ABS warning lamp circuit.

- An open in the wire
- Inoperative instrument cluster assembly
- Inoperative ABS warning lamp module
- Inoperative HECU

INSPECTION PROCEDURES

CHECK DTC OUTPUT.

1. Connect the Scan Tool to the 16P data link connector located behind the driver's side kick panel.

2. Check the DTC output using Scan Tool.

Is DTC output?

▶ Repair circuit indicated by code output.

▶ Check instrument cluster.

CHECK INSTRUMENT CLUSTER

Disconnect the cluster connector and turn the ignition switch ON.
Does the ABS warning lamp remains ON?

▶ Replace the instrument cluster.

▶ Check for open the wire.

CHECK FOR OPEN IN THE WIRE

Check for continuity in the wire between cluster and ABS control module.
Is there continuity?

▶ Replace the ABS control module and recheck.

▶ Repair an open in the wire between cluster and ABS control module.

BLEEDING OF BRAKE SYSTEM

1. Remove the reservoir cap and fill the brake reservoir with brake fluid.

If there is any brake fluid on any painted surface, wash it off immediately.

When pressure bleeding, do not depress the brake pedal.
Recommended fluid. . DOT3 or DOT4

2. Connect a clear plastic tube to the brake caliper bleeder plug and insert the other end of the tube into a half filled

clear plastic bottle.

3. Connect the scan tool to the data link connector located underneath the dash panel.

4. Select and operate according to the instructions on the scan tool screen.

You must obey the maximum operating time of the ABS motor with the scan tool to prevent the motor pump
from burning.

(1) Select kia vehicle diagnosis.

(2) Select vehicle name.

(3) Select Anti-Lock Brake system.

(4) Select air bleeding mode.

(5) Press "YES" to operate motor pump and solenoid valve.