Mitsubishi Lancer Evolution 7. Manual — part 37
7-1
EQUIPMENT
CONTENTS
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Multi-distribution Input/output by Circuit
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Functions and Control of SWS ECUs
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EQUIPMENT –
General Description
7-2
GENERAL DESCRIPTION
The adoption of new accessories and functions has enhanced a lineup of equipment.
Installation of Smart Wiring System (SWS) with new functions
such as headlamp auto-cut and lamp on reminder function,
ETACS-ECU, and front-ECU
1. Adoption of waterproof connector in the engine compartment
2. Installation of fuse box and relay box
1. Adoption of headlamp with leveling function
2. Installation of front turn signal lamp with outstanding visibility
using an aluminum metal evaporated reflector
3. Installation of rear combination lamps with large tail and stop
lamp emitter blending with the body design
4. Installation of high mount stop lamps
5. Installation of rear fog lamps with outstanding visibility
6. Equipped with an immobilizer system
Enhanced reliability
Enhanced visibility and
safety
Enhanced ease-of-use
and convenience
1. Installation of diagnostic connectors (two) for MUT-II inspection
2. Addition of ignition timing inspection function to the MUT-II
3. Adoption of Smart Wiring System (SWS) to reduce weight and
complexity of harnesses
Improvements in service
quality
Improvements in com-
mercial value
FEATURES
NOTE
Refer to P.7-20 for general information and features of the heater and air conditioner.
EQUIPMENT –
Diagnostic System
7-3
DIAGNOSTIC SYSTEM
Service quality has been improved by fitting diagnostic connectors for MUT-II inspection near the left
knee area of the driver’s seat on the instrument panel.
Diagnostic function
MPI
ABS
Immobilizer
SRS
i b
SWS
g
air bag
ETACS
Column
switch
Front
ECU
Diagnosis code output
D
D
–
D
D
D
D
Diagnosis code output by volt-
meter
–
–
–
–
D
D
D
Output of service data
D
D
–
D
–
–
–
Actuator test
D
D
–
–
–
–
–
Diagnostic output by warning
lamp and indicator lamp
–
D
(ABS warn-
ing lamp)
–
–
–
–
–
Diagnosis record storage
D
D
D
D
–
–
–
Erasure of diagnosis code by
MUT-II
D
D
D
D
–
–
–
Pulse check by MUT-II
–
–
–
–
D
D
D
Pulse check by sounding buzzer
–
–
–
–
D
D
D
DIAGNOSIS CONNECTOR
Diagnosis connector (Black)
1
Diagnosis control
2, 3
–
4
Grounding
5
Grounding
6
–
7
MPI, ABS, immobilizer and SRS air bag
8
–
9
ETACS
10
–
11
12
–
13
–
14
–
15
–
16-pin connector
(black)
12-pin connector
(white)
EQUIPMENT –
Diagnostic System/Battery/Immobilizer
7-4
Diagnosis connector (Black)
16
Battery
Diagnostic connector (White)
21 - 25
–
26
MPI
27 - 32
–
BATTERY
Light and compact batteries have been adopted.
Item
Specifications
44B20L
Voltage V
12
Capacity (5-hour rate Ah)
34
Electrolytic fluid specific gravity
(fully charged state at 20_C)
1.280
IMMOBILIZER SYSTEM
The immobilizer system consists of the ignition key,
the key ring antenna, the immobilizer-ECU, and
the engine-ECU.
The ignition key has a built-in transponder as the
oscillator. The key ring antenna is installed on the
steering lock key cylinder. Only the registered igni-
tion key permits the engine to start, therefore, the
engine can never be started by means of a forged
key or by connecting the ignition wiring directly.
The system is significantly safe and reliable against
theft. In addition, the driver has only to turn the
ignition switch to the “ON” position to activate the
immobilizer system. If the ignition key is lost or
another ignition key is added, all the keys must
be registered again by using the scan tool
MB991502 (MUT-II) for security reasons.
CONSTRUCTION DIAGRAM
The system prevents the engine from being started
deviously to protect the vehicle from theft. The op-
eration is as follows.
1. When the ignition switch is turned “ON”
position,the engine-ECU sends a requirement
for the encrypted code to the immobilizer-ECU
(at this time, the engine is remobilized).
2. When the immobilizer-ECU receives the
requirement from the engine-ECU transponder
inside the ignition key via the antenna. The
energized transponder sends the encrypted
code back to the immobilizer-ECU via the
antenna.
3. The immobilizer-ECU judges the encrypted
code with its code logic in itself. If they are
identical, the immobilizer-ECU sends the
encrypted code to the engine-ECU.
4. If the engine-ECU can not receive the encrypted
code, the engine will be immobilized.
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