Mitsubishi Outlander XL. Manual - part 1195

STEP 8. Measure the voltage at A/C compressor assembly
connector B-17.

(1)

Disconnect A/C compressor assembly connector B-17 and
measure the voltage at the wiring harness side.

(2)

Disconnect powertrain control module connector B-11 and
ground harness side terminal No.102.

(3)

Turn the ignition switch to the "ON" position.

ZC602223 0010

Harness side: B-17

(4)

A/C  compressor  assembly  connector  B-17  terminal  1  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 13.

NO:

 Go to Step 9.

STEP 9. Measure the voltage at A/C compressor clutch relay
connector B-16X.

(1)

Disconnect A/C compressor connector B-16X and measure
the voltage at the relay box side.

(2)

Turn the ignition switch to the "ON" position.

ZC602223 0011

Harness side: B-16X

(3)

Measure the voltage between terminal 4 and ground.

｠

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

(4)

Measure the voltage between terminal 2 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 11.

NO:

 Go to Step 10.

STEP 10. Check the wiring harness between A/C
compressor clutch relay connector B-16X (terminals 2 and
4) and the fusible link (36).

Q:Is  the  wiring  harness  between  A/C  compressor  clutch

relay connector B-16X (terminals 2 and 4) and the fusible

link (36) 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 the wiring harness. Check that the A/C works

normally.

STEP 11. Check the wiring harness between A/C
compressor clutch relay connector B-16X (terminal 3) and
A/C compressor assembly connector B-17 (terminal 1).

NOTE: 

Also check intermediate connector A-13 for loose,

corroded, or damaged terminals, or terminals pushed back in
the connector. If intermediate connector A-13 is damaged,

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55A-71

MANUAL A/C DIAGNOSIS

repair or replace the connector as described in GROUP 00E,
Harness Connector Inspection P.00E-2.

Q:Is  the  wiring  harness  between  A/C  compressor  clutch

relay connector B-16X (terminal 3) and A/C compressor

assembly connector B-17 (terminal 1) in good condition?

YES:

 Go to Step 12.

NO:

 Repair the wiring harness. Check that the A/C works

normally.

STEP 12. Check the wiring harness between powertrain
control module connector B-11 (terminal 102) and A/C
compressor clutch relay connector B-16X (terminal 1).

Q:Is the wiring harness between powertrain control module

connector B-11 (terminal 102) and A/C compressor clutch

relay connector B-16X (terminal 1) 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 the wiring harness. Check that the A/C works

normally.

STEP 13. Check the refrigerant temperature switch.

ZC602046

Thermometer

Engine oil

0000

Do not heat more than necessary.

(1)

Dip  the  metal  part  of  the  cooling  temperature  switch  into
engine  oil  and  increase  the  oil  temperature  using  a  gas
burner or similar.

ZC602047

Less than 2

W

No continuity

125 ºC
(257 ºF)

155 ºC
(311 ºF)

Oil temperature

0000

(2)

When the oil temperature reaches the standard value, check
that voltage is supplied between the terminals.

Standard value:

Item

Temperature

Less than 2 ohms Slightly below 155°C (311°F)
No continuity

155°C (311°F) or more

NOTE: 

When the oil temperature is 155°C (311°F) or

more and there is no continuity, the resistance will not
be 2Ω or lower until the oil temperature reduces to
125°C (257°F) or less.

Q:Is the refrigerant temperature switch operating properly?

YES:

 Go to Step 14.

NO:

 Replace the refrigerant temperature switch. Check

that the A/C works normally.

STEP 14. Replace the A/C-ECU.

Q:Does the A/C operate normally?

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MANUAL A/C DIAGNOSIS

YES:

 No action is necessary and testing is complete.

NO:

 Replace the powertrain control module. Check that the

A/C works normally.

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MANUAL A/C DIAGNOSIS

INSPECTION PROCEDURE 4: Blower Fan and Motor do not Turn.

M15502000913USA0000010000

Blower Motor Circuit

FUSIBLE
LINK

37

BLOWER
RELAY

ETACS-
ECU 

A/C-ECU

BLOWER
MOTOR

POWER
TRANSISTOR

55A-74

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MANUAL A/C DIAGNOSIS