Page 623 of 1575
2007 > 2.7L V6 GASOLINE >
REMOVAL
1.Disconnect the pressure tube (A) from the oil pump by loosening the eye bolt.
Tightening torque Nm (kgf- m, lb - ft):
65 ~ 75 (6.5 ~ 7.5, 47 ~ 54)
2. Disconnect the suction hose (B) from the suction pipe.
[Diesel]
[Gasoline]
3.Remove the drive belt.
4. Loosen the power steering pump mounting bolts, and then remove the power steering pump assembly (A) from the
pump bracket.
Tightening torque Nm (kgf.m lb - ft):
17 ~ 26 (1.7 ~ 2.6, 12 ~ 19)
[Diesel]
Page 624 of 1575
Tightening torque Nm (kgf.m lb - ft):
38 ~ 47 (3.8 ~ 4.7, 27 ~ 34)
[Diesel]
Tightening torque Nm (kgf.m lb - ft):
35 ~ 50 (3.5 ~ 5.0, 25 ~ 36)
[Gasoline]
Be careful not to spill fluid from the power steering oil pump.
INSTALLATION
1.Installation is the reverse of removal.
Page 625 of 1575
The pressure tube does not twist and come in contact with other components.
2. Add power steering fluid
3. Bleed the power steering system. (Refer to the air bleeding in ST group)
4. Check the oil pump pressure.
DISASSEMBLY
1.Remove two bolts from the oil pump body (A), and then remove the suction pipe (B) and O - ring.
2.Loosen the four bolts and remove the oil pump cover assembly (A) and the gasket.
3.Remove the rotor and vanes.
Page 633 of 1575
2007 > 2.7L V6 GASOLINE >
Description
The VRS (Variable Rack Stroke) is the system that controls the rack stroke using the operating unit installed on both
ends of the gear box. Normally the VRS system keeps switching OFF and the rack stroke stays increased, so the
vehicle's turning radius becomes reduced. On the other hand, when fitting the snow chains in winter season, the VRS
switch must be turned ON and the VRS system will prevent interference between the snow chains and the vehicle by
decreasing the rack stoke.
Operating principle
When switching the VRS system ON, the DC motor in the VRS operating unit rotates the gear stopper by 90 degrees
and the gear stopper stops the stop protrusion from entering as shown in the illustration below. This operation reduces
the maximum steering angle by decreasing the rack stroke. When switching the VRS system OFF, the gear stopper
returns to original location and the rack stroke also returns to normal.
Page 635 of 1575

2007 > 2.7L V6 GASOLINE >
TROUBLE SHOOTING
Symptom Probable cause Remedy
There is no change made in rack
stroke even though turning the VRS
switch ON or OFF. a.
VRS operating unit
b. VRS control module
c. VRS switch a.
Inspect the VRS operating unit.
b. Check Input/ output signal of the
VRS control module.
c. Inspect connection of the VRS
switch.
LED is not illuminated even though
turning the VRS switch ON. VRS switch a.
Inspect connection of the VRS
switch.
b. Check the LED for damage.
Inspection of the rack stroke
1.Is the rack stoke (the maximum steering angle) changed when pressing the VRS switch ?
▶ The VRS system is in normal condition.
▶ Go to step 2.
2. Measure the resistance of the VRS operating unit.
(1) Disconnect the VRS operating unit connector.
(2) Measure the resistance between the terminal No.1 and No.2.
Repeat the terminal No.3 and No.4.
Is the measured resistance within standard value ?
4 ~ 20 Ω → Normal condition (standard value)
1 Ω or below → Short
100 Ω or above → Open circuit
▶ Go to step 3.
▶ Repair or replace the power steering gear box.
3. Measure the output voltage of the VRS control module.
(1) Disconnect the VRS control module connector.
(2) Connect 9 ~ 15 V power between the terminal No.3 and No.4.
(3) Measure the output voltage (to DC motor) between the terminal No.5 ~ 8.
Is the voltage measured within standard value ?
Supplied power Measured output voltage
Page 640 of 1575
2007 > 2.7L V6 GASOLINE >
Description
The VRS operating unit installed on both ends of the steering gear box can change the rack stoke by changing angle
of the gear stopper.
Page 795 of 1575

2007 > 2.7L V6 GASOLINE >
General
The supplemental restraint system (SRS) is designed to supplement the seat belt to help reduce the risk or severity of
injury to the driver and passenger by activating and deploying the driver, passenger, side airbag and belt pretensioner
in certain frontal or side collisions.
The SRS (Airbag) consists of : a driver side airbag module located in the center of the steering wheel, which contains
the folded cushion and an inflator unit ; a passenger side airbag module located in the passenger side crash pad
contains the folded cushion assembled with inflator unit ; side airbag modules located in the driver and passenger seat
contain the folded cushion and an inflator unit ; curtain airbag modules located inside of the headliner which contains
folded cushions and inflator units. The impact sensing function of the SRSCM is carried out by electronic
accelerometer that continuously measure the vehicle's acceleration and delivers a corresponding signal through
amplifying and filtering circuitry to the microprocessor.
SRSCM (SRS Control Module)
SRSCM will detect front impact with front impact sensor, and side impact with side impact sensor, and determine
airbag module deployment.
1. DC/DC converter: DC/DC converter in power supply unit includes up/down transformer converter, and provide
ignition voltage for 2 front airbag ignition circuits and the internal operation voltage of the SRSCM. If the internal
operation voltage is below critical value setting, it will perform resetting.
2. Safety sensor: Safety sensor is located in airbag ignition circuit. Safety sensor will operate airbag circuit at any
deployment condition and release airbag circuit safely at normal driving condition. Safety sensor is a double contact
electro - mechanical switch that will close detecting deceleration above certain criteria.
3. Back up power supply: SRSCM has separate back up power supply, that will supply deployment energy instantly in
low voltage condition or upon power failure by front crash.
4. Self diagnosis: SRSCM will constantly monitor current SRS operation status and detect system failure while vehicle
power supply is on, system failure may be checked with trouble codes using scan tool. (Hi- Scan)
5. Airbag warning lamp on: Upon detecting error, the module will transmit signal to SRSCM indicator lamp located at
cluster. MIL lamp will indicate driver SRS error. Upon ignition key on, SRS lamp will turn on for about six seconds.
6. Trouble code registration: Upon error occurrence in system, SRSCM will store DTC corresponding to the error.
DTC can be cleared only by Hi - Scan. However, if an internal fault code is logged or if a crash is recorded the fault
clearing should not happen.
7. Self diagnostic connector: Data stored in SRSCM memory will be output to Hi - Scan or other external output
devices through connector located below driver side crash pad.
8. Once airbag is deployed, SRSCM should not be used again but replaced.
9. SRSCM will determine whether passenger put on seat belt by the signal from built- in switch in seat belt buckle, and
deploy front seat airbag at each set crash speed.
10. Side airbag deployment will be determined by SRSCM that will detect satellite sensor impact signal upon side
crash, irrespective to seat belt condition.
Page 830 of 1575

2007 > 2.7L V6 GASOLINE >
AIRBAG DISPOSAL
SPECIAL TOOL REQUIRED
Before scrapping any airbags or side airbags (including those in a whole vehicle to be scrapped), the airbags or side
airbags must be deployed. If the vehicle is still within the warranty period, before deploying the airbags or side airbags,
the Technical Manager must give approval and/or special instruction. Only after the airbags or side airbags have been
deployed (as the result of vehicle collision, for example), can they be scrapped.
If the airbags or side airbags appear intact (not deployed), treat them with extreme caution. Follow this procedure.
DEPLOYING AIRBAGS IN THE VEHICLE
If an SRS equipped vehicle is to be entirely scrapped, its airbags or side airbags should be deployed while still in the
vehicle. The airbags or side airbags should not be considered as salvageable parts and should never be installed in
another vehicle. 1. Turn the ignition switch OFF, and disconnect the battery negative cable and wait at least three minutes.
2. Confirm that each airbag or side airbag is securely mounted.
3. Confirm that the special tool is functioning properly by following the check procedure.
DRIVER'S AIRBAG :
1.Remove the driver's airbag and install the SST(0957A - 38500).
2. Install the driver's airbag on the steering wheel.
FRONT PASSENGER'S AIRBAG :
1.Remove the glove box, then disconnect the 2P connector between the front passenger's airbag and SRS main
harness.
2. Install the SST(0957A - 3F100).
SIDE AIRBAG :
1.Disconnect the 2P connector between the side airbag and side wire harness.
2. Install the SST (0957A- 3F100).
CURTAIN AIRBAG :
1.Disconnect the 2P connector between the curtain airbag and wire harness.
2. Install the SST(0957A - 38500).
SEAT BELT PRETENSIONER :
1.Disconnect the 2P connector from the seat belt pretensioner.
2. Install the SST(0957A - 38500).
3. Place the deployment tool at least thirty feet (10 meters) away from the airbag.
4. Connect a 12 volt battery to the tool.
5. Push the tool's deployment switch. The airbag should deploy (deployment is both highly audible and visible: a loud
noise and rapid inflation of the bag, followed by slow deflection)
6. Dispose of the complete airbag. No part of it can be reused. Place it in a sturdy plastic bag and seal it securely.