Mitsubishi Outlander XL. Manual — part 50
10. INSPECTION PROCEDURES USING
AN OSCILLOSCOPE
When there are inspection procedures using an
oscilloscope, these are listed.
HOW TO USE THE INSPECTION PROCEDURES
M10001000135USA0000010001
The causes of many of the problems occurring in
electric circuitry are generally the connectors,
components, the ECU, and the 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.
GENERAL <BODY AND CHASSIS>
00-9
HOW TO USE TROUBLESHOOTING/INSPECTION SERVICE POINTS
(1) Relevant circuit(s) of the component which
the DTC indicates are described.
(3) Shows the location of the connector(s) from
the circuit(s) above.
(4) Explains about the operation principle of the
component or its relevant parts in that circuit.
B-48(B)
(2) For connector color, refer to GROUP 80A,
How to read configuration diagrams.
Connector : B-4 8
Inta ke air
tempe rature
sensor
ZC6012890000
00-10
GENERAL <BODY AND CHASSIS>
HOW TO USE TROUBLESHOOTING/INSPECTION SERVICE POINTS
(5) Explains about technical details.
(6) Describes the conditions for that DTC
being set (stored).
(8) Start of the diagnosis procedure
for that DTC.
(10) Provides the inspection procedure
for that DTC step by step.
(7) Describes possible
cause(s)for that DTC.
(M. U.T.-III Sub Assem bly)
(9) Identifies the special tool(s)
necessary for diagnosing that DTC.
Data link
connector
ZC6012900000
HARNESS INSPECTION
Check for an open or short circuit in the harness
between the terminals which were faulty according to
the connector measurements. Carry out this
inspection while referring to GROUP 00E, Harness
Connector Inspection P.00E-2. Here, "Check
harness between 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 P.
00-18."
MEASURES TO TAKE AFTER REPLACING
THE ECU
If the trouble symptoms have not disappeared even
after replacing the ECU, repeat the inspection
procedure from the beginning.
GENERAL <BODY AND CHASSIS>
00-11
HOW TO USE TROUBLESHOOTING/INSPECTION SERVICE POINTS
CONNECTOR MEASUREMENT SERVICE POINTS
M10001000136USA0000010001
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
ZC501892
Special tool
0000
Be sure to use special tool. Never insert a test probe from the
harness side, as this will reduce the waterproof performance and
result in corrosion.
IF INSPECTING WITH THE CONNECTOR
CONNECTED ORDINARY (NON-WATERPROOF)
CONNECTORS
ZC501893
MB992006
0000
Required Special Tool:
｠
MB992006: Extra Fine Probe
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 MB992006
(extra fine probe).
IF INSPECTING WITH THE CONNECTOR
DISCONNECTED
ZC501907
MB991219
0000
When Inspecting a Female Pin
｠
From front side of the connector
Required Special Tool:
MB991219: Inspection Harness (Included in MB991223,
Harness Set)
The inspection harness for connector pin contact
pressure should be used. The test probe should never be
forcibly inserted, as it may cause a defective contact.
｠
From back side of the connector (SRS-ECU harness side
connector)
00-12
GENERAL <BODY AND CHASSIS>
HOW TO USE TROUBLESHOOTING/INSPECTION SERVICE POINTS
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