Mitsubishi Lancer (4A9 engine). Manual — part 245

GENERAL INFORMATION

CONTROLLER AREA NETWORK (CAN)

54C-4

NOTE:

.

•

Dominant ECU: ETACS-ECU and engine
ECU

•

Non-dominant ECU: ECU and sensor on
CAN-C network, excluding ETACS-ECU and
engine ECU

• To the CAN bus line, ECU, sensor, and diagnosis

connector are connected as follows for each net-
work.
CAN-B

• WCM <vehicles without KOS> or KOS-ECU

<vehicles with KOS>

• SRS-ECU

• Heater control unit <vehicles without A/C>

• A/C-ECU <vehicles with A/C>

• Radio and CD player <vehicles with Radio

and CD player> or CAN box unit <vehicles
with MMCS (vehicles for Russia)>

• Combination meter

CAN-C

• Headlamp automatic levelling-ECU <vehicles

with AFS>

• Steering wheel sensor <vehicles with ASC or

AFS>

• AS&G-ECU <vehicles with automatic stop &

go (AS&G) system>

• ABS-ECU <vehicles without ASC> or ASC-

ECU <vehicles with ASC>

• A/T-ECU <A/T> or CVT-ECU <CVT>

• Electric power steering-ECU <vehicles with

Electric power steering>

• Engine-ECU

• Corner sensor/back sensor-ECU <vehicles

with reversing sensor system>

Diagnosis CAN-C

• Diagnosis connector

SPECIAL TOOLS

CONTROLLER AREA NETWORK (CAN)

54C-5

SPECIAL TOOLS

M1548304200972

SPECIAL TOOLS

CONTROLLER AREA NETWORK (CAN)

54C-6

Tool

Number

Name

Use

MB991910

MB991826

MB991955

MB991911

MB991824

MB991827

MB991825

a

b

c

d

e

f

DO NOT USE

MB991955

a. MB991824
b. MB991827
c. MB991910
d. MB991911
e. MB991825
f. MB991826

M.U.T.-III sub-
assembly

a. Vehicle

Communicati
on Interface
(V.C.I.)

b. M.U.T.-III

USB cable

c. M.U.T.-III

main harness
A (Vehicles
with CAN
communicatio
n system)

d. M.U.T.-III

main harness
B (Vehicles
without CAN
communicatio
n system)

e. M.U.T.-III

measure
adapter

f. M.U.T.-III

trigger
harness

CAUTION

For vehicles with CAN
communication, use M.U.T.-III
main harness A to send
simulated vehicle speed. If you
connect M.U.T.-III main harness B
instead, the CAN communication
does not function correctly.
CAN bus diagnostics

MB991223

a

d

c

b

DO NOT USE

BA

MB991223

a. MB991219
b. MB991220
c. MB991221
d. MB991222

Harness set

a. Check

harness

b. LED harness
c. LED harness

adapter

d. Probe

Continuity check and voltage
measurement at harness wire or
connector

a. For checking connector pin

contact pressure

b. For checking power supply

circuit

c. For checking power supply

circuit

d. For connecting a locally sourced

tester

MB992006

TEST EQUIPMENT

CONTROLLER AREA NETWORK (CAN)

54C-7

TEST EQUIPMENT

M1548304300333

Test equipment

Name

Use

AC000019

Digital multimeter

Checking CAN bus circuit (for resistance and voltage
measurements)

MB992006

Extra fine probe

Continuity check and voltage
measurement at harness wire or
connector

MB992110

MB992110

Power plant ECU
check harness

Checking continuity and measuring
voltage at engine-ECU <Petrol>
harness-side connector

MB992044

MB992044

Power plant ECU
check harness

Checking continuity and measuring
voltage at engine-ECU <Diesel>
harness-side connector

B991974

MB991974

ABS check
harness

Checking continuity and measuring
voltage at ABS-ECU harness-side
connector

MB991997

MB991997

ASC check
harness

Checking continuity and measuring
voltage at ASC-ECU harness-side
connector

Tool

Number

Name

Use