Page 38 of 828

3
4
5
8
11
1461-00/2820-00/1491-00/8210-00/3110-00/3410-00/4892-00/8810-00/8010-00/7410-100/8510-00/8710-00/8510-00/8610-00/
8730-00/7340-00/7632-00/8310-00/8610-00/8510-00/8320-00/8410-00/8210-00/8310-00/4810-00/7770-00/8910-00/8790-00/6810-00
ENGINE1461-00 STARTING / CHARGING.................
1413-00 GLOW CONTROL UNIT...................
1491-00 ECU (ENGINE CONTROL
UNIT - D20DTR EU-V).....................
1490-00 ECU (ENGINE CONTROL
UNIT - GSL G23)............................
8210-00 DIAGNOSIS CIRCUIT.....................CHASSIS3110-00 TCU (6-A/T)...................................
3410-00 TCCU............................................
4892-00 ABS/ESP........................................8730-00 IMMOBILIZER CIRCUIT................
7340-00 SUNROOF CIRCUIT.......................
7632-00 CIGAR LIGHTER / POWER
OUTLET CIRCUIT........................
8310-00 HEAD LAMP CIRCUIT..................
8610-00 DRL (DAY TIME RUNNING
LIGHT) UNIT CIRCUIT.................
8510-00 HLLD (HEAD LAMP LEVEL G
DEVICE) CIRCUIT.........................
8320-00 TAIL LAMP CIRCUIT....................
8410-00 TURN SIGNAL / HAZARD
LAMP CIRCUIT.............................
8210-00 TRAILER LAMP CIRCUIT.............
8310-00 FOG LAMP CIRCUIT.....................
4810-00 STOP / BACK-UP
LAMP CIRCUIT.............................
7770-00 INTERIOR LAMP CIRCUIT............
7770-00 AUTO DIMMING ROOM
MIRROR CIRCUT.........................
8910-00 AUDIO / CLOCK CIRCUIT..............
8790-00 PARKING AID CIRCUIT..................
6810-00 PTC HEATER (POSITIVE
TEMPERATURE COEFFICIENT).....
6810-00 FATC (FULL AUTO TEMP.
CONTROL) CIRCUIT....................
6810-00 AIR-CON (MANUAL) CIRCUIT......... 12
14
1533
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
52
'
ELECTRIC8810-00 AIR-BAG.......................................
8010-00 CLUSTER......................................
7410-00 POWER SEAT - DRIVER................
7410-00 POWER SEAT - PASSENGER.......
8510-00 ELECTRIC OUTSIDE MIRROR........
8510-00 SEAT WARMER.............................
8710-00 STICS.............................................
8510-00 POWER WINDOW CIRCUIT...........
8610-00 HORN............................................17
18
20
21
22
23
24
31
32
Page 47 of 828
(1) CONNECTOR INFORMATION
(2) CONNECTOR IDENTIFICATION SYMBOL & PIN NUMBER POSITION STOP LAMP, FUEL PUMP, IMMOBILIZER 3)
Page 132 of 828
01-110000-00
6. CODING AND INITIALIZATION
1) Engine Variant Coding
Unit Selection Description Remarks
PTC auxilary heater NO For PTC auxilary heater
equipped vehicle, select
"YES".-
YES YES
Glow plug Relay (K-line) Select "AQGS". -
AQGS (CAN) AQGS (CAN)
Transmission 6-speed M/T "DSI 6 AT" is selected
automatically.Select
5-speed A/T (DC 5 AT) -
6-speed A/T (DSI 6 AT) Select
Pressure sensor for
A/C refrigerantNO Select the appropriate
system.-
Type Pressure
sensor for A/C
refrigerant
Immobilizer NO Select "YES" if the vehicle
has immobilizer.-
YES YES
Vehicle speed input
typeCAN Select "CAN" if the vehicle
has ABS or ESPCAN
WIRE -
Fan 2 relays Select "PWM". -
PWM fan PWM fan
Auto cruise NO Select "YES" if the vehicle
has cruise contro.-
YES YES
G-sensor NO 2WD ABS & Non-ABS: NO
4WD ABS & ESP: YESSelect
YES Select
Page 312 of 828

15-90000-00
2) ECU Control
(1) Function
a. ECU Function
ECU receives and analyzes signals from various sensors and then modifies those signals into
permissible voltage levels and analyzes to control respective actuators.
ECU microprocessor calculates injection period and injection timing proper for engine piston
speed and crankshaft angle based on input data and stored specific map to control the engine
power and emission gas.
Output signal of the ECU microprocessor drives pressure control valve to control the rail pressure
and activates injector solenoid valve to control the fuel injection period and injection timing; so
controls various actuators in response to engine changes. Auxiliary function of ECU has adopted
to reduce emission gas, improve fuel economy and enhance safety, comforts and conveniences.
For example, there are EGR, booster pressure control, autocruise (export only) and immobilizer
and adopted CAN communication to exchange data among electrical systems (automatic T/M
and brake system) in the vehicle fluently. And Scanner can be used to diagnose vehicle status
and defectives.
<00760097008c00990088009b00900095008e0047009b008c00940097008c00990088009b009c0099008c0047009900880095008e008c00470096008d0047006c006a007c00470090009a0047009500960099009400880093009300a000470054005b005700
47009b009600470052005f005c00b6006a004700880095008b> protected from factors like oil,
water and electromagnetism and there should be no mechanical shocks.
To control the fuel volume precisely under repeated injections, high current should be applied
instantly so there is injector drive circuit in the ECU to generate necessary current during injector
drive stages.
Current control circuit divides current applying time (injection time) into full-in-current-phase and
hold-current-phase and then the injectors should work very correctly under every working
condition.
b. Control Function
Controls by operating stages
To make optimum combustion under every operating stage, ECU should calculate proper
injection volume in each stage by considering various factors.
Starting injection volume control
During initial starting, injecting fuel volume will be calculated by function of temperature and
engine cranking speed. Starting injection continues from when the ignition switch is turned to
ignition position to till the engine reaches to allowable minimum speed.
Driving mode control
If the vehicle runs normally, fuel injection volume will be calculated by accelerator pedal travel
and engine rpm and the drive map will be used to match the drivers inputs with optimum
engine power. -
-
-
Page 346 of 828
15-430000-00
(14) Immobilizer control
A. Overview
The Immobilizer System provides an additional theft deterrent to the vehicle in which it is installed
and prevents it from being started by unauthorized persons. The transponder integrated in the key
and the engine control unit have the same code. When the ignition key with the integrated
transponder is turned to the ON position, the ECU (Engine Control Unit) checks the crypto code
of the key and, if correct, allows the vehicle to start the engine.
For details, refer to Chapter "Immobilizer".
B. Components
Basic components (ignition key system) ▶
D20DTR ECUImmobilizer antennaInstrument cluster
Immobilizer keyStart motor
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15-44
Key approval process ▶
When turning the ignition switch to ON position, the power is supplied to BCM and ECU. ECU
communicate with the immobilizer key to check if it is valid crypto code. If it is valid, ECU start to
control the engine when turning the ignition switch to START position. The system has 10
seconds of valid time-out period. If the engine does not start in this period, the key approval
process should be done again.
Page 446 of 828
02-32
▶Ignition Key Hole Illumination
The ignition key hole illumination comes on when opening the driver's door or passenger's
door while the ignition key is removed.
The ignition key hole illumination stays on for 10 seconds when closing the door after step
(1).
The output stops when the ignition key is turned to the "ON" position.
The output stops when receiving the lock signal from the remote control key and entering
armed mode. 1.
2.
3.
4.
▶Key cylinder with key hole illumination
With diesel and gasoline engine With diesel engine With gasoline engine
Without immobilizer
(rechargeable)
→With key hole
illumination With immobilizer
(rechargeable)
→With key hole
illumination With immobilizer
→Without key hole
illumination and
rechargeable function
Page 465 of 828
02-518710-01
Battery Replacement
Key typeImmobilizer & charging key REKES key
SpecificationLithium-ion PD2032 CR2032
Amount1 EA 1 EA
REKES key
Battery
Immobilizer &
charging key