Mitsubishi 380. Manual — part 938

MULTI-CENTER DISPLAY

CHASSIS ELECTRICAL

54A-286

INSPECTION PROCEDURE 2: The multi-centre display does not Show any Information.

.

CIRCUIT OPERATION

The multi-centre display unit is energized by the bat-
tery through the ignition switch (ACC) and (IG1).

.

TECHNICAL DESCRIPTION (COMMENT)

The ground circuit, the battery circuit, the ignition
switch (ACC) circuit or the ignition switch (IG1) circuit
is suspected to be open or defective.

.

TROUBLESHOOTING HINTS

Refer to circuit diagrams GROUP-

90

• Refer to configuration diagrams GROUP-

80

• Malfunction of the multi-centre display unit

• Damaged wiring harness and connectors

.

52DB014A

CONNECTOR: C-29

16DB490A

CONNECTOR: C-05

HARNESS SIDE

C-05 (B)

MULTI-CENTER DISPLAY

CHASSIS ELECTRICAL

54A-287

DIAGNOSIS

Required Special Tool:

• MB991223: Harness Set

STEP 1. Check the multi-centre display unit ground
circuit. Measure the resistance at the multi-centre display
unit connector C-05.
(1) Disconnect the multi-centre display unit connector C-05

and measure at the harness side.

(2) Measure the resistance between terminal 6 and ground.

• The measured value should be 2 ohm or less.

Q: Does the measured resistance value correspond with

this range?
YES :
Go to Step 4.
NO : Go to Step 2.

STEP 2. Check the multi-centre display unit connector
C-05 for loose, corroded or damaged terminals, or
terminals pushed back in the connector.
Q: Is the multi-centre display unit connector C-05 in good

condition?
YES :
Go to Step 3.
NO : Repair or replace the connector. Refer to GROUP

00E, Harness Connector Inspection

P.00E-2

.

16DB490A

CONNECTOR: C-05

HARNESS SIDE

C-05 (B)

AC209364

CONNECTOR C-05
(HARNESS SIDE)

JU

16DB490A

CONNECTOR: C-05

HARNESS SIDE

C-05 (B)

MULTI-CENTER DISPLAY

CHASSIS ELECTRICAL

54A-288

STEP 3. Check the wiring harness between multi-centre
display unit connector C-05 (terminal 6) and ground.
Q: Is the wiring harness between multi-centre display unit

connector C-05 (terminal 6) and ground in good
condition?
YES :
There is no action to be taken.
NO : Repair the wiring harness. The multi-centre display

unit should work normally.

STEP 4. Check the multi-centre display unit power supply
circuit (battery). Measure the voltage at the multi-centre
display unit connector C-05.
(1) Disconnect the multi-centre display unit connector C-05

and measure at the harness side.

(2) Measure the voltage between terminal 1 and ground.

• The measured value should be approximately 12 volts

(battery positive voltage).

Q: Does the measured voltage correspond with this range?

YES : Go to Step 7.
NO : Go to Step 5.

STEP 5. Check multi-centre display unit connector C-05
for loose, corroded or damaged terminals, or terminals
pushed back in the connector.
Q: Is multi-centre display unit connector C-05 in good

condition?
YES :
Go to Step 6.
NO : Repair or replace the connector. Refer to GROUP

00E, Harness Connector Inspection

P.00E-2

. The

multi-centre display unit should work normally.

16DB490A

CONNECTOR: C-05

HARNESS SIDE

C-05 (B)

16DB490A

CONNECTOR: C-05

HARNESS SIDE

C-05 (B)

AC209365

CONNECTOR C-05
(HARNESS SIDE)

HY

16DB490A

CONNECTOR: C-05

HARNESS SIDE

C-05 (B)

MULTI-CENTER DISPLAY

CHASSIS ELECTRICAL

54A-289

STEP 6. Check the wiring harness between C-05 (terminal
1) and battery.

NOTE: Also check intermediate connector C-29 for loose, cor-
roded, or damaged terminals, or terminals pushed back in the
connector. If intermediate connector C-29 is damaged, repair or
replace the wiring harness. Refer to GROUP 00E, Harness
Connector Inspection

P.00E-2

.

Q: Is the wiring harness between C-05 and battery in good

condition?
YES :
There is no action to be taken.
NO : Repair the wiring harness. The multi-centre display

unit should work normally.

STEP 7. Check the multi-centre display unit power supply
circuit [ignition switch (ACC)]. Measure the voltage at the
multi-centre display unit connector C-05.
(1) Disconnect the multi-centre display unit connector C-05

and measure at the harness side.

(2) Turn the ignition switch to "ACC" position.

(3) Measure the voltage between terminal 3 and ground by

backprobing.

• The measured value should be approximately 12 volts

(battery positive voltage).

Q: Does the measured voltage correspond with this range?

YES : Go to Step 10.
NO : Go to Step 8.

16DB490A

CONNECTOR: C-05

HARNESS SIDE

C-05 (B)

52DB014A

CONNECTOR: C-29

16DB490A

CONNECTOR: C-05

HARNESS SIDE

C-05 (B)

AC209365

CONNECTOR C-05
(HARNESS SIDE)

HZ

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Текст

Политика конфиденциальности