KIA CARNIVAL 2007 Workshop Manual

EV : Inlet Valve
AV : Outlet Valve
LR : Rear left wheel
RF : Front right wheel
LF : Front left wheel
RR : Rear right wheel
PE : Pump motor
4. INCREASE MODE
Inlet valve(EV)Outlet valve(AV)Pump motor
Operation OpenCloseOFF

EV : Inlet Valve
AV : Outlet Valve
LR : Rear left wheel
RF : Front right wheel
LF : Front left wheel
RR : Rear right wheel
PE : Pump motor

2007 > 2.7L V6 GASOLINE >
COMPONENTS

2007 > 2.7L V6 GASOLINE >
STANDARD FLOW OF DIAGNOSTIC TROUBLESHOOTING
NOTES WITH REGARD TO DIAGNOSIS
The phenomena listed in the following table are not abnormal.
Phenomenon Explanation
System check sound When starting the engine, a thudding sound can sometimes be heard coming
from inside the engine compartment. This is because the system operation check
is being performed.
ABS operation sound a.Sound of the motor inside the ABS hydraulic unit operation (whine).
b. Sound is generated along with vibration of the brake pedal (scraping).
c. When ABS operates, sound is generated from the vehicle chassis due to
repeated brake application and release
(Thump : suspension; squeak: tires)
ABS operation (Long braking
distance) For road surfaces such as snow- covered and gravel roads, the braking distance
for vehicles with ABS can sometimes be longer than that for other vehicles.
Accordingly, advise the customer to drive safely on such roads by lowering the
vehicle speed.
Diagnosis detection conditions can vary depending on the diagnosis code. When checking the trouble symptom after
the diagnosis code has been erased, ensure that the requirements listed in "Comment" are met.
SCAN TOOL (PRO) CHECK
1. Turn the ignition switch OFF.
2. Connector the Scan tool to the 16P data link connector located the driver's side kick panel.

3.Turn the ignition switch ON.
4. Check for DTC using the Scan tool
5. After completion trouble of the repair or correction of the problem, erase the stored fault codes using the scan tool.
6. Disconnect the Scan tool from the 16P data link connector.
ABS CHECK SHEET

PROBLEM SYMPTOMS TABLE
SymptomSuspect Area
ABS does not operate. Only when 1. - 4. are all normal and the problem is still
occurring, replace the HECU.
a. Check the DTC reconfirming that the normal code is
output.
b. Power source circuit.
c. Speed sensor circuit.
d. Check the hydraulic circuit for leakage.
ABS does not operate intermittently. Only when 1. - 4. are all normal and the problem is still
occurring, replace the ABS actuator assembly.
a. Check the DTC reconfirming that the system is
operating to specifications.
b. Wheel speed sensor circuit.

c.Stop lamp switch circuit.
d. Check the hydraulic circuit for leakage.
Communication with Scan tool is not possible.
(Communication with any system is not possible) a.
Power source circuit
b. Diagnosis line
Communication with Scan tool is not possible.
(Communication with ABS only is not possible) a.
Power source circuit
b. Diagnosis line
c. HECU
When ignition key is turned ON (engine OFF), the ABS
warning lamp does not light up. a.
ABS warning lamp circuit
b. HECU
Even after the engine is started, the ABS warning lamp
remains ON. a.
ABS warning lamp circuit
b. HECU
During ABS operation, the brake pedal may vibrate or may not be able to be depressed. Such phenomena are
due to intermittent changes in hydraulic pressure inside the brake line to prevent the wheels from locking and is
not an abnormality.
DETECTING CONDITION
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. a.
Inoperative power source circuit
b. Inoperative wheel speed sensor circuit
c. Inoperative hydraulic circuit for leakage
d. Inoperative HECU
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 ?
▶ Check the power source circuit.
▶ 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?
▶ Check the ground circuit.
▶ Check the harness or connector between the fuse (10A) in the engine compartment junction block and the ABS
control module. Repair if necessary.

control module. Repair if necessary.
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?
▶ Check the wheel speed sensor circuit.
▶ Repair an open in the wire and ground point.
CHECK THE WHEEL SPEED SENSOR CIRCUIT.
Refer to the DTC troubleshooting procedures.
Is the system operating to specifications ?
▶ Check the hydraulic circuit for leakage.
▶ 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 ?
▶ The problem is still occurring, replace the ABS control module.
▶ Replace the leaking hydraulic lines.
DETECTING CONDITION
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 a.
Inoperative power source circuit
b. Inoperative wheel speed sensor circuit

DTC is displayed, check the following probable cause. When the
problem is still occurring, replace the ABS control module.b.
Inoperative wheel speed sensor circuit
c. Inoperative hydraulic circuit for leakage
d. Inoperative HECU
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 ?
▶ Check the wheel speed sensor circuit.
▶ 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 ?
▶ Check the stop lamp switch circuit.
▶ 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?
▶ Check the hydraulic circuit for leakage.
▶ Repair the stop lamp switch. Repair an open in the wire between the ABS control module and the stop lamp
switch.
CHECK THE HYDRAULIC CIRCUIT FOR LEAKAGE.
Refer to the hydraulic lines.
Inspect leakage of the hydraulic lines.
Is the system operating to specifications ?
▶ The problem is still occurring, replace the ABS control module.

▶ Replace the leaking hydraulic lines.
DETECTING CONDITION
Trouble Symptoms Possible Cause
Possible malfunction in the power supply system (including ground)
for the diagnosis line. a.
An open in the wire
b. Poor ground
c. Inoperative power source circuit
INSPECTION PROCEDURES
CHECK THE POWER SUPPLY CIRCUIT FOR THE DIAGNOSIS
Measure the voltage between terminal 9 of the data link connector and body ground.
Specification: approximately B+
Is voltage within specification?
▶ Check the ground circuit for the diagnosis.
▶ Repair an open in the wire. Check and replace fuse (15A) from the engine compartment junction block.
CHECK THE GROUND CIRCUIT FOR THE DIAGNOSIS
Check for continuity between terminal 5 of the data link connector and body ground.
Is there continuity?
▶ Repair an open in the wire between terminal 5 of the data link connector and ground point.
DETECTING CONDITION
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 a.
An open in the wire