sensor SSANGYONG TURISMO 2013 Repair Manual

15-46
(15) CDPF control
A. Overview
As the solution for environmental regulations and PM Particle Material) of diesel engine, the low
emission vehicle is getting popular. This vehicle is equipped with an extra filter to collect the soot and
burn it again so that the amount of PM in the exhaust gas passed through the DOC (Diesel Oxidation
Catalyst) is reduced. The CDPF (Catalyst & Diesel Particulate Filter) is an integrated filter including
DOC (Diesel Oxidation Catalyst) and DPF (Diesel Particulate Filter).
For details, refer to Chapter "CDPF".
B. Components
Oxygen sensorFront
EGT sensorCDPF
(DOC + DPF)Rear
EGT sensor
Differential pressure
sensorD20DTR ECUElectric throttle body

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Rear EGT sensor:
Measure DPF temp
Diff. pres. sensor:
Measure pressure
between front side and
rear side of CDPFElectronic throttle
body: Control intake
air mass
ECU (DCM 3.7)
Injector: Control post
injection
D. Operation process
When the differential pressure sensor detects the pressure difference between the front and the rear
side of CDPF, the sensor sends signal indicating the soot is accumulated and the post injection is
performed to raise the temperature of exhaust gas. The amount of fuel injected is determined
according to the temperature of exhaust gas detected by the rear temperature sensor. If the
tem
perature is below 600°C, the amount of fuel injected is increased to raise the temperature. If
the tem
perature is over 600°C, the amount of fuel injected is decreased or not controlled. When
the engine is running in low load range, the amount of post injection and the amount of intake air are
controlled. It is to raise the temperature by increasing the amount of fuel while decreasing the amount
of intake air.
Front EGT sensor:
Measure DOC temp
T-MAP sensor
Intake air
mass
Exceed PM
limitBooster
pressure/
temperaturePost injection
Control intake
air mass

01-50000-00
No. FUNCTION No. FUNCTION
1 HFM sensor 12 Intake manifold
2 Intake air duct 13 Connecting rod
3 Resonance flap 14 Exhaust manifold
4 Cylinder head cover 15 Crankshaft
5 Exhaust camshaft 16 Engine mounting
6 Intake camshaft 17 Starter
7 Cylinder head 18 Crankcase
8 Spark plug connector 19 Oil pump sprocket
9 Valve tappe
t20 Oil strainer
10 Injector 21 Oil pan
11 Exhaust valve 22 Drain plug
Front View ▶

08-6
3. IGNITION SYSTEM OPERATION
This ignition system does not use a conventional distributor and coil. It uses a crankshaft position
sensor input to the Engine Control Module (ECM).
The ECM then determines Electronic Spark Timing (EST) and triggers the electronic ignition system
ignition coil.
This type of distributor less ignition system uses a "waste spark" method of spark distribution. Each
cylinder is paired with the cylinder that is opposite it (2.3L DOHC: 2 - 3 or 1 - 4, 3.2L DOHC: 1 - 6 or 2 -
5 or 3 - 4).
The spark occurs simultaneously in the cylinder coming up on the compression stroke and in the
cylinder coming up on the exhaust stroke.
The cylinder on the exhaust stroke requires very little of the available energy to fire the spark plug.
The remaining energy is available to the spark plug in the cylinder on the compression stroke. These
systems use the EST signal from the ECM to control the EST.
The ECM uses the following information: Engine load (mass air flow sensor, manifold air pressure
sensor).
Engine coolant temperature.
Intake air temperature.
Crankshaft position.
Engine speed (rpm).
1) Electronic Ignition System Ignition Coil
The Electronic Ignition (EI) system ignition coil is located on the cylinder head cover.
The double ended coils receive the signal for the ECM which controls the spark advance. Each
EI system ignition coil provides the high voltage to two spark plugs simultaneously;
3.2L DOHC
T1/1: cylinder 2 and 5
T1/2: cylinder 3 and 4
T1/3: cylinder 1 and 6
The EI system ignition coil is not serviceable and must be replaced as an assembly.

01-38410-02
1. CAUTIONS WHEN WORKING ON ELECTRICAL UNITS
80℃
10A 15A
Disconnect the negative cable from the
battery in advance when working on electrical
units. -
Make sure to turn "OFF" the ignition switch
and other lamp switches before
disconnecting or connecting the negative
battery cable. (Otherwise, semiconductor
parts can be damaged.)
Do not drop or appy excessive impact to
sensors and relays. -
If a fuse is blown, replace it with a fuse which
has the correct amperage rating. If you use a
fuse with higher capacity than the
specification, the component can be
damaged or catch fire. -

02-8
(2) Rain Sensor Coupled Wiper
▶ System layout
This vehicle has a different wiper control logic compared to other models. As shown in the system
diagram, the rain sensor unit does not control wiper directly. The rain sensor unit sends infrared rays
signal through LED and then receives it with photo diode and then sends the returned signal to STICS
and the STICS controls the wipers directly.
For more details, refer to rain sensing wiper section in this manual.

02-98710-01
▶ Rain sensing operation point
The wiper relay is turned on and the wiper motor runs one cycle when the ignition key is turned to
“ON” position (while the wiper switch is in “AUTO” position).
The wiper relay (LO) is turned on and the wiper motor runs one cycle when changing the wiper
switch to “AUTO” position from any other positions (while the ignition key is in “ON”
position). When the wiper switch is turned to “AUTO” position again from other positions,
the system drives the wiper relay (LO) to run the wiper motor one cycle only when the rain sensor
detects the “Rain Detected” signal. 1)
2)

02-10
The wiper relay is turned on and the wiper motor runs one cycle when the volume sensitivity is
increased (ex: from 0 to 1) (while the ignition key is in “ON” position, the wiper switch is in
“AUTO” position, and the wiper motor is in “Parked” position). However, the wiper motor can
be operated only when the rain sensor detects the “Rain Detected” signal.
▶ Rain sensing sensitivity control
If the volume sensitivity is changed more than 2 stages within 2 seconds, the wiper motor runs only
one cycle. *

02-118710-01
The wiper system continuously outputs the parking signal of current sensitivity when the parking
terminal is grounded (while the ignition key is in “ON” position and the wiper switch is in
“AUTO” position). 1)
※ The wiper motor runs only when the rain sensor requires.
When the parking terminal is fixed to IGN (HIGH), the wiper system outputs the operating signal of
current sensitivity for 2 seconds, then continuously outputs the parking signal of current sensitivity. 2)
※ The wiper motor runs only when the rain sensor requires.
▶ Wiper operation when the wiper parking terminal is grounded

02-12
The wiper relay (LO) is turned on and the wiper motor runs one cycle when the wiper sensitivity is
changed to 2 from 3 during receiving the malfunction signal (1) from the rain sensor. However, the
wiper motor can be operated only when the rain sensor detects the "Rain Detected" signal. 1)
If the volume sensitivity is changed more than 2 stages within 2 seconds, the wiper motor runs
only one cycle. ▶ Defective rain sensor