Page 145 of 465

0-8
RODIUS 2006.09
0000-00
CDEF(Catalytic Disel Particulate Filter)
4. OPERATION PROCESS
1) Combustion Temperature and Procedures
As the soot is filtered in the CDPF, it is burnt and removed, and the CDPF is returned to the
initial state to collect the soot. Therefore, the burning procedures in the CDPF can be called as
recycling.
The CDPF assembly is integrated with DOC (at front side) and DPF (at rear side).
The DPF burns the soot with high-temperature exhaust gas (over 600°C). The rear
exhaust gas temperature sensor monitors the temperature of DPF section. If this temperature is
below the regeneration temperature, the ECU increases the post injection period to increase
the fuel injection amount, and consequently to increase the exhaust gas temperature.
Normally, when the vehicle is driven for 600 ~ 1,200 km, the enough amount of soot to be
burnt is filtered and accumulated in the CDPF. The ECU increase the amount of post
<009000950091008c008a009b0090009600950047009b0096004700900095008a0099008c0088009a008c0047009b008f008c0047009b008c00940097008c0088009b009c0099008c00470096008d0047008c009f008f0088009c009a009b0047008e008800
9a0047009c00970047009b00960047005d0057005700b6006a> so that the soot is
burnt. The soot is burnt for 15 ~ 20 minutes.
Page 148 of 465

0-11
CDEF(Catalytic Disel Particulate Filter)
RODIUS 2006.09
0000-00
5) Operating Procedures of CDPF
The most efficient and practical technology for now is adopted to the diesel particulate filter
(DPF).
This system collects the soot from the diesel engine to the filter and burns the soot so that ove
r
than 95% of soot can be removed from the exhaust gas. However, the durability and the cost o
f
additional system remain as problems.
Firstly, the exhaust gas is passed through the DOC and its temperature is increased as it is
oxidized. The ECU detects the temperature change with two temperature sensors. The CO, HC
and partial particulate material are removed from the exhaust gas (this procedures are the
sames as the ones for the conventional DOC and no sensor is required).
After the exhaust gas is passed through the DOC and oxidized, most of the harmful material is
removed from the exhaust gas. However, to meet the environmental regulations in the future,
the soot is filtered and burnt again in DPF to decrease the particulate material further.
The filtered soot is burned whenever the vehicle is driven for 600 ~ 1200 km. The driving
distance can be differed depending on the vehicle’s driving conditions. The soot is
burnt for 15 ~ 20 minutes.
Page 149 of 465

0-12
RODIUS 2006.09
0000-00
CDEF(Catalytic Disel Particulate Filter)
6) CDPF Over Load (Notice of Beginning CPF Regeneration Mode
- P1430)
The CDPF system enters the regeneration mode when the mileage is around 600 ~ 1,200
km, depending on the driving condition and driving habits. At this moment, the ECU
performs the CDPF regeneration process; however, the driver may not notice anything
because there is no engine warning or other signals indicating such process.
The control logic in the regeneration process is to increase the exhaust gas temperature by
increasing the fuel injection during post injection process and controlling the intake ai
r
amount(throttle body), and no significant change can be noticed in the vehicle condition.
The engine CHECK lamp flashes but there is no decrease in engine torque.
The engine CHECK lamp flashes to inform the driver when there is an over load due to soot
accumulation because the regeneration temperature cannot be reached due to low speed,
even though CDPF regeneration is in process.
The CDPF regeneration process must be completed by driving for 15-20 minutes at a speed
higher than 80 km/h to solve this problem.
The engine CHECK lamp flashes when CDPF is over loaded; therefore, 4) above must be
performed in this case. 1.
2.
3.
4.
5.
7) CDPF's Excessive Soot Accumulation (P0432)
When the vehicle is driven at a low speed (5-10 km/h) for a long time or long distance, the
soot over accumulates inside the CDPF and the combustion temperature cannot be reached
even by performing the soot combustion process. In this case, this DTC is generated.
This is more serious situation than the CDPF over load condition. Therefore, the engine
power is decreased to protect the system and the engine CHECK lamp is turned on.
Blow the soot between the engine and the exhaust system several times and clear the DTC
to solve this problem. If the same DTC is generated again, check the system according to
the DTC description related to the differential pressure sensor.
* This DTC is actually generated mostly due to the related system malfunction, such as
differential pressure sensor malfunction. 1.
2.
3.
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0-7
ELECTRIC GENERAL
RODIUS 2006.09
0000-00
Sub condenser
Theft deterrent horn (under the washer fluid reservoir)
PTC power supply relay
(PTC system equipped vehicle)
ABS (ESP) HECU
(under the battery)
Fuse and relay box in engine compartmentBrake pressure sensor
Page 178 of 465
0-5
STICS
RODIUS 2006.09
8710-01
The STICS in this vehicle has similar functions with the one used in the new Rexton. Additional
function of diagnosing through SCAN-Tool has been added into new STICS.
The major difference in hardware-wise is that STICS receives vehicle collision signal from G-
sensor in the airbag module to activate automatic door unlock function when the vehicle
collided over 15 km/h of vehicle speed.
1. COMPONENTS LOCATOR
STICS / ICM module
Air bag ECU
Sends the vehicle collision
signals to STICS.
Theft deterrent horn
Installed under the battery. This
horn works only for the theft
deterrent function, panic
function, and remote starting.
SCAN-tool
SCAN-100 is used fo
r
REKES key coding and
trouble diagnosis.
REKES
Added the escort and
panic function
RK STICS
ICM module
This module contains
various relays, chime and
buzzer controlled by
STICS
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0-3
PARKING AID SYSTEM
RODIUS 2006.09
8790-04
8790-04PARKING ASSISTANCE SYSTEM
1. COMPONENT SPECIFICATIONS OF PARKING AID
SYSTEM
The parking aid system emits the supersonic wave signals from the sensors on the rear bumper
with a specific interval and detects the reflected signals from obstacles while the gear selecto
r
lever is in “R” position.
The number of displaying bars is decreased and the alarm interval becomes faster as the
obstacle approaches. This supplementary system is to secure the safety distance for parking.
Parking aid unit
Detecting type: Super sonic wave
Detecting distance: 25 ~ 120 cm
(distance between sensor and obstacle)
1)
Parking aid sensor
- Type: Piezo ceramic element
- Frequency: 40 KHz ± 2 KHz
- Detecting range (13.5 V)
* Horizontal: Min. 20° at 110 ± 5 cm Min. 1 00° at 50 ± 5 cm
* Vertical: Min. 20° at 110 ± 5 cm Min. 60° at 50 ± 5 cm
2)
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0-6
RODIUS 2006.09
3240-01
TORQUE ON DEMAND
When turning on the road with low friction rate ▶
During cornering on roads such as unpaved, snowy, icy and muddy, ground grab capacity is
increased by distributing required torque and, at the same time, comfortable steering operation
is maintained by controlling the ground grab capacity at high level.
Distribution ratio: 30 % for front wheels and 70 % for rear wheels.
When climbing or starting off on the road with low friction rate ▶
In order to secure the maximum ground grab capacity and driving force during climbing o
r
starting off on the roads such as unpaved, snowy and icy road, the system controls the driving
force to distribute properly in full 4WD mode.
Distribution ratio: 44 % for front wheels and 56 % for rear wheels.
Page 324 of 465
0-4
RODIUS 2006.09
4892-01
ESP SYSTEM
1. COMPONENTS AND LOCATIONS
2WD vehicle has the longitudinal sensor in the HECU.
1. HECU: (Hydraulic &
Engine conrol unit) 2. Pressure sensor 3. Wheel speed sensor
4. Sensor cluster:
(Yaw rate + lateral sensor + longitudinal sensor) 5. Steering wheel angle
sensor 6. ESP off switch (Electronic
Stability Program Switch) ESP Warning lamp