power steering SSANGYONG KORANDO 2012 User Guide

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8) CAN Configuration (P-CAN/B-CAN)
(1) CAN Configuration (P-CAN/B-CAN)
Name Function
ECUElectronic Control Unit
TCUTransmission Control Unit
EPSElectronic Power Steering Unit
BCMBody Control Moudule
SKMSmart Key Moudule
CAN system communicates with the system units in vehicle. It consists of P-CAN and B-CAN according
to the communication speed.
P-CAN & B-CAN: SKM, Instrument cluster, BCM, Disgnostic connector
P-CAN: ECU, ABS & ESP, TCU, E-coupling, EPS unit
Terminal resistance: installed on ECU and BCM

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Brake Master cylinder type Tandem type
Booster type Vacuum assisted booster type
Brake type Front wheel Disc
Rear wheel Disc
Parking brake Mechanical type
Suspension Front suspension MacPherson + Coil spring
Rear suspension Multi-link + Coil spring
Air
ConditionerRefrigerant (capacity)
R-134a(430 ± 30g)
Electrical Battery type / Capacity (V-AH) MF / 12 - 90
Starter capacity (V-KW) 12 - 2.3
Alternator capacity (V-A) 14V-140A (EPS), 14V-120A (NPS)
* ( ) option
DescriptionDiesel 2.0 Engine
(D20DTF(Low CO2))
Manual
TransaxleOperating type Floor change type
Gear ratio 1st 3.385
2nd 1.708
3rd 1.033
4th 0.786
5th 0.730
6th 0.595
Reverse 3.747
Transfer Case Model 4WD
Type Electronic control type
Clutch Operating type Hydraulic type
Disc type Dry single diaphragm type
Power
SteeringType Rack and pinion
Steering angle Inner39.0°
Outer31.24°
Rear Axle Drive shaft type Independent
suspensionBall joint type (4WD)
Axle housing type Build-up type (4WD)

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3. RECOMMENDED FLUIDS AND LUBRICANTS
Descriptions Capacity Specifications
Engine OilDiesel 2.0≒ 6.0ℓ Quality class: Ssangyong genuine engine oil
(Total Quartz INEO ECS 5W 30, SK ZIC SY
5W 30 or oil Approved by MB 229.51 SAE 5W30)
Engine Coolant Diesel 2.0≒ 8.5ℓ Ssangyong genuine coolant
Anti-Freeze: SYC-1025
Manual Transaxle
Fluid6-speed≒ 1.6ℓ Ssangyong genuine oil (HD MTF 75W/85
(SHELL) or HK MTF 75W/85(SK))
Transfer Case Fluid
4WD ≒ 0.58ℓ Ssangyong genuine oil
(IDEMITSU LW 80W/90)
Rear Axle Oil 4WD ≒ 0.7ℓ Ssangyong genuine oil
(SAE 80W/90, API GL-5)
Brake / Clutch Fluid As required Ssangyong genuine oil (DOT4)
Power Steering Fluid≒ 1.0ℓ Ssangyong genuine oil (ATF DEXRON II)
* TOTAL FLUIDE DA (Extreme cold condition
only)
Use only Ssangyong genuine fluids. Use of non-recommended products could cause damage to
the unit
Keep the specified capacity and service interval. -
-

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5. CAN COMMUNICATION CONFIGURATION
The CAN topology is linked with CAN communication system, which consists of P-CAN and B-CAN.
The instrument cluster and BCM (Body Control Module) communicate through both P-CAN and B-CAN
at the same time, and the SKM (SMART Key Module) communicates with the instrument cluster and
BCM through B-CAN.
1) CAN Configurations (P-CAN/B-CAN)
Abbreviations Meaning Function
GCU Glow Control Unit Glow control unit
EPS Electronic Power Steering Unit Electrically driven power steering unit
BCM Body Control Module Body control module
SKM Smart Key Module Smart key module

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4) Horn Switch
Horn switch
Two horns are installed in the radiator grille at the bottom of both sides (one on each side). There is
another horn installed at the bottom of the battery tray side in the engine compartment for theft alarm.
Operating the horn switch on the steering wheel applies the power to the horn relay to operate both
horns (Dual horn).
The theft deterrent horn is controlled by the BCM in armed mode regardless of the horn relay operation.

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3) Steering Wheel Heating System
Steering wheel heating unit
Old New
The steering wheel heated wire and the heating unit are
installed in the steering wheel assembly.Lower main switch cluster
Old
New
The steering wheel heating switch has
been added on the lower main switch
cluster.
Specifications ▶
Description Specification
Power consumption Below 95W
Rated voltage 12V
Operating voltage 9V~16V
Rated current6±2.0A
Steering wheel
heating unit
Steering wheel
heating switch

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Fuse for vehicle with EPS
The vehicle with EPS has EPS fuse (80A)
mounted to the positive (+) terminal of the
battery not in the fuse box.
EPS unit
The ECU controls the electric power
steering system depending on the driving
conditions, based on the signals from the
torque and angle sensor.
HECU (Hydraulic & Electronic Control Unit)
HECU for ABS HECU for EPS
The HECU (Hydraulic & Electronic Control Unit) determines the slip conditions of vehicle wheels by
calculating each wheel's speed and the increment/decrement of speed based on the information
detected by the sensors, and controls the pumping and boosting/reducing/keeping pressure by
operating the valve and motor of HECU.
2. MOUNTING LOCATIONS (CHASSIS)
Moto
HU (Hydraulic Unit) ECU (Electronic
Control Unit) Moto
HU
(Hydraulic Unit) ECU (Electronic
Control Unit)
Motor
angle (8P)
Motor power (3P)Torque angle
sensor (8P) Battery (2P) Connector to
vehicle (8P)
Fuse for EPS
Steering wheel angle sensor (SWAS)
The steering wheel angle sensor is mounted between
the steering column and the steering column shaft. It is
commonly used by the ESP (Electronic Stability
Program) system. And it receives signals of the steering
wheel angle sensor from the ESP HECU (Hydraulic &
Electronic Control Unit).

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G-sensor(4WD, ABS)
For the vehicle with the ABS, a speed difference
between the wheels is not noticeable as all the
wheels are slipping during abrupt braking.
Therefore, the vehicle needs the speed information
from other sensors other than the wheel speed
sensor. The longitudinal acceleration sensor (G-
sensor) is used for this case. It controls the ABS by
using the signals from the sensor during abrupt
braking and acceleration.
TCU unit
The transmission control unit (TCU) is installed under
the driver seat, and controls the transmission. The
TCU is operated by the ignition power supply and
receives and processes the following information from
the inner sensors through CAN buses.E-coupling unit
The E-coupling unit is a control unit which
determines the magnetic force by
considering CAN signals (wheel speed,
engine torque, pedal opening, ABS/ESP
CAN signals, etc.) from other ECUs.
TGS Lever assembly
The TGS communicates with TCU
(Transmission Control Unit), ECU,
ESP HECU and instrument cluster
to let the driver select the desired
transmission gear and to maintain
the desired driving condition. Also,
the tip switch is installed on the
lever knob and the steering wheel
so that the driver select the gear
manually when the shift lever is in
"M".Sensor cluster
The sensor cluster is linked to
the sensors on the unit board
and CAN interface. And they
are housed in one case and
mounted to the body.

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Front sub frame with HPS type steering gear box assembly
The front sub frame consists of 4 body bush mountings and 2 transmission
bush mountings which reduce the vibration from the powertrain and road,
and also control the torque. And the frame is equipped with hydraulic
pressure pipe of the HPS type steering gear box.
4. SUB FRAME AND STEERING GEAR BOX LAYOUT
Front sub frame with EPS type steering gear box assembly
This kind of front sub frame system has the same mounting structure with
the frame with HPS. But the EPS type steering gear box has no hydraulic
pressure pipe since it is driven by the electric motor.
Rear side
Front sideHPS type steering
gear box assembly
Front sub frame
assembly
Rear side
Front side
EPS type steering
gear box assembly
Front sub frame
assembly

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Steering gear box assembly
The steering gear box assembly consists of power cylinder and control valve. The power cylinder has a
cylinder, piston and piston rod. The control valve directs the oil to one end face of the piston to enhance
the steering force. There is a safety check valve which lets the driver steer manually when there is a
malfunction in the hydraulic circuit.
8. STEERING SYSTEM LAYOUT
1) HPS (Hydraulic Power Steering)
The hydraulic pump is a vane
type pump and consists of the
flow control valve and pressure
relief valve.The oil reservoir sends the oil to
the power steering pump and
receives the oil from the power
steering gear.There is a shock absorber which
is folded in the axial direction
when the vehicle is crashed and
a ignition switch assembly on
the column shaft.
The lower shaft minimizes the
torque change using a CV joint
which has constant angular
speed.
Tie rod endSteering cylinderGear box
Tie rod end
Hydraulic pipeColumn shaft
Lower shaft
Steering wheel
assembly
Hydraulic pipe & hose