Mitsubishi Outlander XL. Manual - part 1201

ZC600876

Connector: C-114

ZC600878000

Connector: C-303, C-309, C-315

C-303

C-309 (B)

C-315

TECHNICAL DESCRIPTION (COMMENT)
If the voltage is not supplied to the blower motor, the
blower relay system may be failed.

TROUBLESHOOTING HINTS

｠

Malfunction of the ETACS-ECU

｠

Malfunction of the blower relay

｠

Damaged harness wires or connectors

DIAGNOSIS

Required Special Tools:

｠

MB991223: Harness Set

｠

MB992006: Extra Fine Probe

STEP 1. Check blower relay connector C-303 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.

Q:Is blower relay connector C-303 in good condition?

YES:

 Go to Step 2.

NO:

 Repair or replace the connector. Refer to GROUP 00E,

Harness Connector Inspection P.00E-2.

AIR CONDITIONING

55A-95

MANUAL A/C DIAGNOSIS

STEP 2. Check the blower relay continuity.

ZC603579

4

1

2

3

3

1

4

2

Blower relay

Follow the table below to check the blower relay for continuity.

Battery voltage

Connect

tester

between

Specified

condition

Not applied

3 - 4

Open Circuit

｠

Connect terminal 1 to the
positive battery terminal

｠

Connect terminal 2 to the
negative battery terminal

3 - 4 Less than 2 ohms

Q:Is the blower relay in good condition?

YES:

 Go to Step 3.

NO:

 Replace the rear window defogger relay.

STEP 3. Measure the voltage at blower relay connector
C-303.

(1)

Disconnect blower relay connector C-303, and measure the
voltage at the junction block side.

ZC6022230020

Harness side: C-303

(2)

Measure the voltage between terminals 1 and ground.

｠

The  measured  value  should  be  approximately  12  volts
(battery positive voltage).

(3)

Measure the voltage between terminals 4 and ground.

｠

The  measured  value  should  be  approximately  12  volts
(battery positive voltage).

Q:Is the measured voltage approximately 12 volts?

YES:

 Go to Step 5.

NO:

 Go to Step 4.

55A-96

AIR CONDITIONING

MANUAL A/C DIAGNOSIS

STEP 4. Check the wiring harness between blower relay
connector C-303 (terminals 1 and 4) and the fusible link (37).

Q:Is  the  wiring  harness  between  blower  relay  connector

C-303 (terminals 1 and 4) and the fusible link (37) in good

condition?

YES:

 It can be assumed that this malfunction is

intermittent. Refer to GROUP 00, How to Use
Troubleshooting/Inspection Service Points - How to Cope
with Intermittent Malfunctions P.00-15.

NO:

 Repair or replace the wiring harness. Refer to GROUP

00E, Harness Connector Inspection P.00E-2.

STEP 5. Check blower relay connector C-114 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.

Q:Is blower relay connector C-114 in good condition?

YES:

 Go to Step 6.

NO:

 Repair or replace the connector. Refer to GROUP 00E,

Harness Connector Inspection P.00E-2.

STEP 6. Check the wiring harness between blower relay
connector C-303 (terminal 3) and blower motor connector
C-114 (terminal 2).

Q:Is  the  wiring  harness  between  blower  relay  connector

C-303  (terminal  3)  and  blower  motor  connector  C-114

(terminal 2) in good condition?

YES:

 It can be assumed that this malfunction is

intermittent. Refer to GROUP 00, How to Use
Troubleshooting/Inspection Service Points - How to Cope
with Intermittent Malfunctions P.00-15.

NO:

 Repair or replace the wiring harness. Refer to GROUP

00E, Harness Connector Inspection P.00E-2.

DATA LIST REFERENCE TABLE

M15502000100USA0000010000

Refer  to  GROUP  55B  -  Data  list  reference  table  P.
55B-13.)

ACTUATOR TEST REFERENCE

M15502000101USA0000010000

Refer  to  GROUP  55B  -  Actuator  test  reference  P.
55B-18.)

CHECK AT A/C-ECU TERMINAL

M15502000103USA0000010000

32

24

29

21

31

30

22 23

27

35

33

25

34

26

36

28

ZC603629

<C-109>

<C-108>

AIR CONDITIONING

55A-97

MANUAL A/C DIAGNOSIS

Terminal
No.

Check items

Check conditions

Normal conditions

1

Power transistor (DRAIN)

Air volume control dial: Maximum air
volume

0 to 2 V

2

Power transistor (GATE)

Air volume control dial: Maximum air
volume

Battery voltage

3 - 8

-

-

-

9

A/C control panel (input)

-

-

10

A/C control panel (input)

-

-

11, 12

-

-

-

13

Battery power supply

Always

Battery voltage

14

Ground

Always

0 V

15

IG1 power supply

Ignition switch: IG1

Battery voltage

16

A/C pressure sensor input

Refer to P.55A-102.

Refer to P.55A-102.

17

Interior temperature sensor

Sensor  probe  temperature:  25°C
(77°F) (4.0 kΩ)

2.1 to 2.7 V

18

-

-

-

19

Sensor ground

Always

0 V

20

A/C  pressure  sensor  power
supply

Ignition switch: IG2

5 V

21

Air thermo sensor ground

Always

0 V

22

Air thermo sensor

Sensor  probe  temperature:  25°C
(77°F) (4.0 kΩ)

2.1 to 2.7 V

23

-

-

-

24

Motor  for  air  outside/inside
air

 circulation

 switching

damper

-

-

25

Motor  for  air  outside/inside
air

 circulation

 switching

damper

-

-

26

Motor  for  air  outside/inside
air

 circulation

 switching

damper

-

-

27

Motor  for  air  outside/inside
air

 circulation

 switching

damper

-

-

28

Air mix damper motor

-

-

29

Motor power supply

-

-

30

Air

 outlet

 changeover

damper motor

-

-

31

Air

 outlet

 changeover

damper motor

-

-

32

Air

 outlet

 changeover

damper motor

-

-

55A-98

AIR CONDITIONING

MANUAL A/C DIAGNOSIS