Mitsubishi Outlander (2013+). Manual — part 231
HOW TO USE TROUBLESHOOTING/INSPECTION SERVICE POINTS
GENERAL
00-6
Diagnosis method
AC508911
Gathering information
from the customer.
Check trouble symptom.
Reoccurs
Does not reoccur
CAN bus diagnosis chart*
CAN bus diagnosis*
Read the diagnosis code.
Read the diagnosis code.
After taking note of the
malfunction code, erase the
diagnosis code memory.
Recheck trouble symptom.
Read the diagnosis codes.
How to treat past
trouble*
Refer to the INSPECTION CHART
FOR DIAGNOSIS CODES
(Refer to applicable group).
How to treat past
trouble*
Refer to the INSPECTION CHART
FOR TROUBLE SYMPTOMS
(Refer to applicable group).
INTERMITTENT MALFUNCTIONS
*
Diagnosis code
displayed.
(Current trouble)*
Diagnosis code
displayed.
(Current trouble)*
No diagnosis
code.
No diagnosis
code.
Diagnosis code
displayed.
(Past trouble)*
Diagnosis code
displayed.
(Past trouble)*
No diagnosis code
or communication
with M.U.T.-III not
possible
Diagnosis code
displayed.
OK
NG
2
1
3
3
3
3
4
4
5
Coding data check*
6
• *
1
: For how to diagnose CAN bus lines, refer to GROUP 54C .
• *
2
: For the CAN bus diagnosis chart, refer to GROUP 54C .
• *
3
: When the M.U.T.-III detects a diagnosis code, its display informs users whether a mechanical problem
currently exists or whether it existed before. The message for the former state identifies it as an "Active"
and the message for the latter identifies it as a "Stored".
• *
4
: For how to treat past trouble, refer to
• *
5
: For how to cope with intermittent malfunctions, refer to
.
• *
6
: For coding data, refer to
.
2. SYSTEM OPERATION AND SYMPTOM
VERIFICATION TESTS
If verification of the symptom(s) is difficult, proce-
dures for checking operation and verifying symptoms
are shown.
3. DIAGNOSIS FUNCTION
Details specific to individual systems are described.
4. DIAGNOSIS CODE CHART
Diagnostic trouble codes and diagnostic items are
shown.
5. DIAGNOSIS CODE PROCEDURES
Indicates the inspection procedures corresponding to
each diagnosis code (Refer to How to Use Inspection
Procedures
).
HOW TO USE TROUBLESHOOTING/INSPECTION SERVICE POINTS
GENERAL
00-7
6. TROUBLE SYMPTOM CHART
If there are trouble symptoms even though the
M.U.T.-III does not find any diagnosis codes, Inspec-
tion procedures for each trouble symptom will be
found by means of this chart.
7. SYMPTOM PROCEDURES
Indicates the inspection procedures corresponding to
each symptom classified in the Symptom Chart
(Refer to How to Use Inspection Procedures
).
8. DATA LIST REFERENCE TABLE
Inspection items and normal judgement values have
been provided in this chart as reference information.
9. ACTUATOR TEST TABLE
The Actuator Test item numbers, inspection items,
and judgement values have been provided in this
chart as reference information.
10. CHECK AT ECU TERMINALS
Terminal numbers for the ECU connectors, inspec-
tion items, and judgement values have been pro-
vided in this chart as reference information.
11. INSPECTION PROCEDURE BY USING
AN OSCILLOSCOPE
When there are inspection procedures using an
oscilloscope, these are described here.
DIAGNOSIS FUNCTION
M1001013401040
The diagnosis function retrieves diagnosis code and
data list by M.U.T.-III and enables the performance of
the actuator test.
• DIAGNOSIS CODE
• Data list output
• Actuator test
• Diagnosis deletion using M.U.T.-III
• Freeze frame data
• Status indication by diagnosis code
• ECU information display
NOTE: If a diagnosis code is set, the "status indica-
tion by diagnosis code" informs users whether a
mechanical problem currently exists (current trouble)
or whether it existed before but normal operation has
been restored (past trouble).
HOW TO READ DIAGNOSIS CODE
CAUTION
Before connecting or disconnecting the
M.U.T.-III, turn the ignition switch to the "LOCK"
(OFF) position.
ACB05017
MB992747, MB992748, MB991827
MB992744, MB991824
AB
MB992745, MB991910
Diagnosis connector
Connect the M.U.T.-III to the 16-pin diagnosis con-
nector, and read the diagnosis code.
NOTE:
.
•
For details on how to use the M.U.T.-III, refer to
the "M.U.T.-III operation manual."
1. Ensure that the ignition switch is at the "LOCK"
(OFF) position.
2. Start up the personal computer.
3. Connect special tool V.C.I.-Lite USB cable
(MB992747/MB992748) or M.U.T.-III USB cable
(MB991827) to V.C.I.-Lite (MB992744) or V.C.I.
(MB991824) and the personal computer.
4. Connect V.C.I.-Lite main harness A (MB992745)
or M.U.T.-III main harness A (MB991910) to the
V.C.I.-Lite or V.C.I.
5. Connect the V.C.I.-Lite main harness A or
M.U.T.-III main harness A to the diagnosis
connector of the vehicle.
NOTE: When the V.C.I.-Lite is connected to the
diagnosis connector, the V.C.I.-Lite indicator lamp
will be illuminated in a green colour.
6. Turn the V.C.I. power switch to the "ON" position.
<When using the V.C.I.>
NOTE: When the V.C.I. is energized, the V.C.I.
indicator lamp will be illuminated in a green col-
our.
HOW TO USE TROUBLESHOOTING/INSPECTION SERVICE POINTS
GENERAL
00-8
7. Start the M.U.T.-III system on the personal
computer and turn the ignition switch to the "ON"
position.
8. Read the diagnosis code.
9. Disconnecting the M.U.T.-III is the reverse of the
connecting sequence, making sure that the
ignition switch is at the "LOCK" (OFF) position.
ERASING DIAGNOSIS CODE
CAUTION
Before connecting or disconnecting the
M.U.T.-III, turn the ignition switch to the "LOCK"
(OFF) position.
Connect the M.U.T.-III to the diagnosis connector,
and erase the diagnosis code. The procedure is the
same as "How to Read Diagnosis Code ."
HOW TO USE THE INSPECTION
PROCEDURES
M1001013500862
The causes of many of the problems occurring in electric circuitry are generally the connectors, components,
the ECU, the wiring harnesses between connectors, in that order. These inspection procedures follow this
order. They first try to discover a problem with a connector or a defective component.
AC701738AC
Explains about the basic
operation of the components.
Explains about
technical details.
Describes the
conditions for that
diagnosis code being
set.
Start of diagnosis
procedure
Describes possible
causes(s) for that
diagnosis code.
Describes
inspection
procedure.
CURRENT TROUBLE
Indicates that the status is "Active" and the trouble is
currently present. Carry out troubleshooting as
described in the applicable inspection procedure.
HOW TO USE TROUBLESHOOTING/INSPECTION SERVICE POINTS
GENERAL
00-9
PAST TROUBLE
Indicates that the status is "Stored" and the trouble is
historic. Since the trouble may still be present, set
the vehicle to the diagnosis code detection condition
and check that the status changes to "Active". If the
status does not change from "Stored", observe the
applicable inspection procedure with particular
emphasis on connector(s) and wiring harness.
HARNESS CHECK
Check for an open or short circuit in the harness
between the terminals which are faulty according to
the connector measurements. Carry out this inspec-
tion while referring to the Electrical Wiring Manual.
Here, "Check the wiring harness between the power
supply and terminal xx" also includes checking for
blown fuse. For inspection service points when there
is a blown fuse, refer to "Inspection Service Points
for a Blown Fuse
MEASURES TO TAKE AFTER REPLAC-
ING THE ECU
If the trouble symptoms have not disappeared even
after replacing the ECU, repeat the inspection proce-
dure from the beginning.
CONNECTOR MEASUREMENT SERVICE
POINTS
M1001013600405
CAUTION
During diagnosis, a diagnosis code associated
with other system may be set when the ignition
switch is turned on with connector(s) discon-
nected. On completion, confirm all systems for
diagnosis code(s). If diagnosis code(s) are set,
erase them all.
Turn the ignition switch to the "LOCK" (OFF) position
when connecting and disconnecting the connectors.
Turn the ignition switch to "ON" when measuring,
unless there are instructions to the contrary.
IF INSPECTING WITH THE CONNECTOR
CONNECTED <WATERPROOF
CONNECTORS>
CAUTION
Never insert a test probe from the harness side,
as this will reduce the waterproof performance
and result in corrosion.
AC105597AB
Special tool
Use the special tools such as test harness, harness
connector or check harness.
IF INSPECTING WITH THE CONNECTOR
CONNECTED <ORDINARY
(NON-WATERPROOF) CONNECTORS>
AC105598AH
MB992006
Inspect by inserting a test probe from the harness
side. If the connector is too small to insert a test
probe (e.g. control unit connector), do not insert it
forcibly. Use special tool extra fine probe
(MB992006).
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