Mitsubishi Outlander (2003+). Manual — part 531
TROUBLESHOOTING
HEATER, AIR CONDITIONER AND VENTILATION
55A-19
STEP 18. Measure the voltage at C-06 A/C-ECU
connector.
(1) Disconnect A/C-ECU connector C-06, and
measure at the wiring harness side.
(2) Turn the ignition switch to the "ON" position.
(3) Disconnect engine-ECU connector C-134, and
earth terminal 8. <2000>
(4) Disconnect engine-ECU or engine-A/T-ECU
connector C-139, and earth terminal 8. <2400>
AC308718
Connector: C-06 <LHD>
AZ
9
1
15
7
4
12 1110
2
3
13
5
14
6
16
8
C-06(B)
Harness side
AC309474AB
Connector: C-134 <2000>
Harness side
22
9
14
15
2 1
3
16
1918
5 4
17
6
21
7
20
8
25
12
10
23
11
24
26
13
JAE-E
AC309486
Connector: C-139 <2400-LHD>
AC
Harness side
C-139 (GR)
TROUBLESHOOTING
HEATER, AIR CONDITIONER AND VENTILATION
55A-20
(5) Measure the voltage between terminal 7 and
body earth.
OK: System voltage
Q: Is the check result normal?
YES :
Go to Step 21.
NO :
Go to Step 19.
STEP 19. Connector check: B-18X A/C
compressor relay connector and C-06 A/C-ECU
connector
Q: Is the check result normal?
YES :
Go to Step 20.
NO :
Repair the connector.
AC301541BX
Connector C-06
(Harness side)
9
1
15
7
4
121110
2
3
13
5
14
6
16
8
AC309476AB
Front of
vehicle
Relay box side
1
3
2
4
B-18X
-
Connector: B-18X
AC308718
Connector: C-06 <LHD>
AZ
9
1
15
7
4
12 1110
2
3
13
5
14
6
16
8
C-06(B)
Harness side
TROUBLESHOOTING
HEATER, AIR CONDITIONER AND VENTILATION
55A-21
STEP 20. Check the wiring harness between
B-18X A/C compressor relay connector terminal
No.1 and C-06 A/C-ECU connector terminal No.7.
NOTE: Prior to the wiring harness inspection, check
intermediate connector C-104, and repair if neces-
sary.
•
Check the A/C compressor relay output line for
open or short circuit.
Q: Is the check result normal?
YES :
The trouble can be an intermittent
malfunction (Refer to GROUP 00, How to
Cope with Intermittent Malfunction
NO :
Repair the wiring harness.
AC309476AB
Front of
vehicle
Relay box side
1
3
2
4
B-18X
-
Connector: B-18X
AC308719
AR
Connectors: C-06, C-104 <LHD>
C-06(B)
C-06
9
1
15
7
4
121110
2
3
13
5
14
6
16
8
Harness side
C-104(B)
15
1
8
3
10
2
9
11
4
13
12
5
14
16
7
6
C-104
TROUBLESHOOTING
HEATER, AIR CONDITIONER AND VENTILATION
55A-22
STEP 21. Measure the voltage at C-06 A/C-ECU
connector.
(1) Disconnect the connector, and measure at the
wiring harness side.
(2) Turn the ignition switch to the "ON" position.
(3) Turn the blower switch to the "ON" position.
(4) Measure the voltage between terminal 8 and
body earth.
OK: System voltage
Q: Is the check result normal?
YES :
Go to Step 24.
NO :
Go to Step 22.
STEP 22. Connector check: C-11 resistor
connector and C-06 A/C-ECU connector
Q: Is the check result normal?
YES :
Go to Step 23.
NO :
Repair the connector.
AC308718
Connector: C-06 <LHD>
AZ
9
1
15
7
4
12 1110
2
3
13
5
14
6
16
8
C-06(B)
Harness side
AC301541BY
Connector C-06
(Harness side)
9
1
15
7
4
121110
2
3
13
5
14
6
16
8
AC308719
Connectors: C-06, C-11 <LHD>
C-06(B)
C-06
C-11
AS
9
1
15
7
4
121110
2
3
13
5
14
6
16
8
1
3
2
4
C-11
Harness side
Harness side
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