Mitsubishi Outlander (2013+). Manual — part 342

CHARGING SYSTEM

ENGINE ELECTRICAL

16-4

SPECIAL TOOL

M1161000601207

Tool

Number

Name

Use

ACB05421

MB992745

MB992746

MB992744

MB992747

MB992748

a

b

c

d

e

DO NOT USE

AB

a. MB99274

4

b. MB99274

5

c. MB99274

6

d. MB99274

7

e. MB99274

8

a. Vehicle

communication
interface-Lite
(V.C.I.-Lite)

b. V.C.I.-Lite main

harness A (for
vehicles with CAN
communication)

c. V.C.I.-Lite main

harness B (for
vehicles without CAN
communication)

d. V.C.I.-Lite USB cable

short

e. V.C.I.-Lite USB cable

long

• Checking the engine speed

MB991910

MB991826

MB991955

MB991911

MB991824

MB991827

MB991825

A

B

C

D

E

F

DO NOT USE

CHARGING SYSTEM

ENGINE ELECTRICAL

16-5

MB991955
A:
MB991824
B:
MB991827
C:
MB991910
D:
MB991911
E:
MB991825
F:
MB991826

M.U.T.-III sub assembly

• A: Vehicle

communication
interface (V.C.I.)

• B: M.U.T.-III USB

cable

• C: M.U.T.-III main

harness A (Vehicles
with CAN
communication
system)

• D: M.U.T.-III main

harness B (Vehicles
without CAN
communication
system)

• E: M.U.T.-III

measurement adapter

• F: M.U.T.-III trigger

harness

• Checking the engine speed

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.

MB991519

Alternator test harness

Checking the alternator
("S" terminal voltage)

Tool

Number

Name

Use

CHARGING SYSTEM

ENGINE ELECTRICAL

16-6

ON-VEHICLE SERVICE

ALTERNATOR OUTPUT LINE VOLTAGE DROP TEST

M1161000902137

AK203361AD

Alternator

Ammeter (clamp-type)

Voltmeter (digital-type)

"B" terminal

Battery

This test determines whether the wiring from the
alternator "B" terminal to the battery (+) terminal
(including the fusible line) is in a good condition or
not.
1. Always be sure to check the following before the

test.

• Alternator installation

• Drive belt tension

(Refer to GROUP 11A

− On-vehicle Service − Drive

Belt Tension Check ).

• Fusible link

• Abnormal noise from the alternator while the

engine is running

2. Turn the ignition switch to the "LOCK" (OFF)

position.

3. Disconnect the negative battery cable.

4. Set a clamp-type DC test ammeter to the

alternator "B" terminal output wire.

NOTE: Disconnecting the alternator output wire
and connecting the ammeter may not thoroughly
diagnose an alternator output line resistance
increase problem because of an insufficient con-
nection between terminal "B" and the output wire.

5. Connect a digital-type voltmeter between the

alternator "B" terminal and the battery (+)
terminal. [Connect the (+) lead of the voltmeter to
the "B" terminal and connect the (

−) lead of the

voltmeter to the battery (+) cable].

6. Reconnect the negative battery cable.

7. Connect the M.U.T.-III

8. Leave the hood open.

9. Start the engine.

10.With the engine running at 2,500 r/min, turn the

headlamps and other lamps on and off to adjust
the alternator load so that the value displayed on
the ammeter is slightly above 30 A.

Adjust the engine speed by gradually decreasing
it until the value displayed on the ammeter is 30
A. Take a reading of the value displayed on the
voltmeter at this time.

Limit: maximum 0.3 V

NOTE: When the alternator output is high and the
value displayed on the ammeter does not
decrease until 30 A, set the value to 40 A. Read
the value displayed on the voltmeter at this time.
When the value range is 40 A, the limit is maxi-
mum 0.4 V.

11.If the value displayed on the voltmeter is above

the limit value, there is probably a malfunction in
the alternator output wire, so check the wiring
between the alternator "B" terminal and the
battery (+) terminal (including fusible link).

If a terminal is not sufficiently tight or if the
harness has become discoloured due to
overheating, repair and then test again.

12.After the test, run the engine at idle.

13.Turn off all lamps.

CHARGING SYSTEM

ENGINE ELECTRICAL

16-7

14.Turn the ignition switch to the "LOCK" (OFF)

position.

15.Disconnect the M.U.T.-III.

16.Disconnect the negative battery cable.

17.Disconnect the ammeter and voltmeter.

18.Connect the negative battery cable.

OUTPUT CURRENT TEST

M1161001002450

AK503328

Alternator

Ammeter
(clamp-type)

Voltmeter

Battery

+

-

CAN communication

Engine-ECU

Load

B

FR

L

S

G

+

AB

-

Charging
warning lamp

Combination meter

This test determines whether the alternator output
current is normal.
1. Before the test, always be sure to check the

following.

• Alternator installation

• Battery (Refer to GROUP 54A − Battery −

On-vehicle Service

− Battery Test .)

NOTE: The battery should be slightly discharged.

The load needed by a fully-charged battery is
insufficient for an accurate test.

• Drive belt tension

(Refer to GROUP 11A

− On-vehicle Service − Drive

Belt Tension Check ).

• Fusible link

• Abnormal noise from the alternator while the

engine is running.

2. Turn the ignition switch to the "LOCK" (OFF)

position.

3. Disconnect the negative battery cable.

4. Set a clamp-type DC test ammeter to the

alternator "B" terminal output wire.

NOTE: Disconnecting the alternator output wire
and connecting the ammeter may not thoroughly
diagnose an output current drop problem because
of an insufficient connection between terminal "B"
and the output wire.

5. Connect a voltmeter with a range of 0

− 20 V

between the alternator "B" terminal and the earth
[Connect the (+) lead of the voltmeter to the "B"
terminal, and then connect the (

−) lead of the

voltmeter to the earth].

6. Connect the negative battery cable.

7. Connect the M.U.T.-III

8. Leave the hood open.

9. Check that the reading on the voltmeter is equal

to the battery voltage.