Mitsubishi Outlander XL. Manual - part 1057

SYMPTOM PROCEDURES

INSPECTION PROCEDURE 1: Even when the equipment (power consumption is 100 W
or less) is connected, the equipment cannot be used.

M15410400007USA0000010000

AC Power Supply Circuit

34

FUSIBLE 
LINK

ETACS-ECU

RELAY
BOX

AC OUTLET

AC INVERTER

POWER 
SUPPLY

CPU

INVERTER

ACCESSORY

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AC POWER SUPPLY

ZC6008750012

C-35

Connector: C-32, C-35

C-32

ZC6008780001

Connector: C-308, C-313

C-308 (GR)

C-313 (BR)

ZC6008790001

Connector: D-103, D-128

D-103

D-128

TECHNICAL DESCRIPTION (COMMENT)
The wiring harness or connector between the AC inverter and
AC outlet may be failed. When the wiring harness and connecter
are normal, the AC inverter or AC outlet may be failed.

NOTE: 

When inside of the vehicle is held at high

temperature (35°C or more) for a long time (for example
under the scorching sun), if the power supply is used with
the vehicle parked, its operation may be automatically
stopped to prevent the power supply unit from being
overheated. After the AC inverter operation is stopped,
when the AC inverter temperature decreases, the power
automatically turns to ON. Also, if the equipment is AC 100
V but not 100 W or less, the equipment cannot be used even
when it is connected.

TROUBLESHOOTING HINTS

｠

The wiring harness or connectors may have loose, corroded,
or  damaged  terminals,  or  terminals  pushed  back  in  the
connector

｠

The AC inverter may be defective

｠

The AC outlet may be defective

DIAGNOSIS

Required Special Tools:

｠

MB991223: Harness set

｠

MB 992006: Extra fine probe

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ACCESSORY

AC POWER SUPPLY

STEP 1. Check AC inverter connector D-128 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.

Q:Is AC inverter connector D-128 in good condition?

YES:

 Go to Step 2.

NO:

 Repair the damaged parts.

STEP 2. Measure the voltage at AC inverter connector
D-128.

(1)

Disconnect AC inverter connector D-128, and measure the
voltage wiring harness side.

ZC5010400014

Connector C-128  
(Harness side)

(2)

Measure the voltage between AC inverter connector D-128
(terminal No. 1) and the body ground.

｠

The  voltage  should  measure  approximately  12  volts
(battery positive voltage).

Q:Does the voltage measure battery voltage?

YES:

 Go to Step 5.

NO:

 Go to Step 3.

STEP 3. Check the wiring harness between AC inverter
connector D-128 (terminal No. 1) and fusible link (34).

NOTE: 

Before the wiring harness check, check intermediate

connector C-32 and C-35, ETACS-ECU connector C-308,and then
repair them if necessary.

Q:Is  the  wiring  harness  between  AC  inverter  connector

D-128  (terminal  No.  1)  and  fusible  link  (34)  in  good

condition?

YES:

 Go to Step 4.

NO:

 Repair the wiring harness between AC inverter

connector D-128 and fusible link (34).

STEP 4. Retest the system

Q:Is the check result normal?

YES:

 The trouble can be an intermittent malfunction

(Refer to GROUP 00, How to use Troubleshooting/inspection
Service Points - How to Cope with Intermittent
Malfunction P.00-15).

NO:

 Carry out the troubleshooting again.

STEP 5. Measure the voltage at AC inverter connector
D-128.

(1)

Disconnect the connector, and measure at the wiring harness
side.

(2)

Turn the ignition switch to the "ON" position.

ACCESSORY

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AC POWER SUPPLY

ZC5010400015

Connector C-128  
(Harness side)

(3)

Measure the voltage between AC inverter connector D-128
(terminal No. 3) and the body ground.

｠

The  voltage  should  measure  approximately  12  volts
(battery positive voltage).

Q:Does the voltage measure battery voltage?

YES:

 Go to Step 8.

NO:

 Go to Step 6.

STEP 6. Check the wiring harness between AC inverter
connector D-128 (terminal No. 3) and ETACS-ECU
connector C-313 (terminal No. 2).

Q:Is  the  wiring  harness  between  AC  inverter  connector

D-128 (terminal No. 3) and ETACS-ECU connector C-313

(terminal No. 2) in good condition?

YES:

 Go to Step 7.

NO:

 Repair the wiring harness between AC inverter

connector D-128 and ETACS-ECU C-313.

STEP 7. Retest the system

Q:Is the check result normal?

YES:

 The trouble can be an intermittent malfunction

(Refer to GROUP 00, How to use Troubleshooting/inspection
Service Points - How to Cope with Intermittent
Malfunction P.00-15).

NO:

 Carry out the troubleshooting again.

STEP 8. Measure the resistance at AC inverter connector
D-128.

(1)

Disconnect the AC inverter connector D-128, and measure
at the wiring harness side.

ZC5010410014

Connector C-128  
(Harness side)

(2)

Measure  the  resistance  between  AC  inverter  connector
D-128 (terminal No. 7) and the body ground.

｠

The  measured  value  should  be  continuity  exists  (2  Ω  or
less).

Q:Does the measured resistance value correspond with this

range?

YES:

 Go to Step 11.

NO:

 Go to Step 9.

STEP 9. Check the wiring harness between AC inverter
connector D-128 (terminal No. 7) and the body ground.

Q:Is  the  wiring  harness  between  AC  inverter  connector

D-128  (terminal  No.  7)  and  the  body  ground  in  good

condition?

YES:

 Go to Step 10.

NO:

 Repair the wiring harness between AC inverter

connector D-128 and the body ground.

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ACCESSORY

AC POWER SUPPLY