Mitsubishi Outlander XL. Manual — part 409
INSPECTION PROCEDURE 25: A/C system.
M11310100309USA0000010000
1
ZK602874
71 72 73 74 75 76 77 78 79 80 81 82
83 84 85 86 87 88 89 90 91 92 93 94
95 96 97 98 99
100 101 102 103 104
112 113 114
109
108
107
110 111
115 116
106
105
118
117
1
2
3
4
1
10 111213 14 1516 17 1819 20
2 3 4
5 6 7 8 9
WHITE
WHITE
7
10A
ORANGE
A/C COMPRESSOR
REL AY
REL AY B OX
(ENGINE COM PARTMENT )
4
2
1
A-16X
B-17
MU802653
A-13
OFF
A/C
REFRIGERANT
TEMPER ATURE
SWITCH
A/C COMPRESSOR ASSEMB
LY
A/C
COMPRESSOR
CLUTCH
A/C COMPRESSOR RELAY CIRCUIT
102
AA00
B-11
ENGINE
CONTROL
MODULE
LIGHT GREEN
LIGHT GREEN
3
1
5
OFF
ON
ON
FUSIBLE LINK
36
MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>
13Ab-831
SYMPTOM PROCEDURES
ZK603592
ECM
B-11 (GR)
Connector: B-11
AA00
ZK603650AA00
A-13
Connector: A-13
ZK603643 AA00
B-17 (B)
Connector: B-17 (B)
ZK603642
A/C compressor relay
A-16X
Connector: A-16X
AA00
CIRCUIT OPERATION
⦆
When the A/C switch ON signal is input into the
ECM, the ECM turns ON the A/C compressor relay.
This causes battery positive voltage to be supplied
to the A/C compressor and the magnet latch
actuates.
COMMENT
⦆
When the A/C is "ON" the ECM turns "ON" the
power transistor in the ECM. The ECM delays A/C
engagement momentarily while it increases idle r/
min. Then the A/C compressor clutch relay coil will
be energized.
With this, the A/C compressor clutch relay turns
"ON", and the A/C compressor clutch operates.
TROUBLESHOOTING HINTS (The most likely
causes for this case: )
⦆
Malfunction of the A/C control system.
⦆
Improper connector contact, open circuit or short-
circuited harness wire.
⦆
Malfunction of the ECM.
DIAGNOSIS
13Ab-832
MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>
SYMPTOM PROCEDURES
STEP 1. Using scan tool MB991958, check data list item.
ZC501967
AC404789
ZC5019680000
MB991824
MB991827
MB991910
Data link
connector
To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before
connecting or disconnecting scan tool MB991958.
(1)
Connect scan tool MB991958 to the data link connector.
(2)
Turn the ignition switch to the "ON" position.
(3)
Check the following items in the data List.
Refer to Data List Reference Table P.13Ab-837.
a
.
Item 93: A/C compressor relay.
(4)
Turn the ignition switch to the "LOCK" (OFF) position.
Q:Are they operating properly?
YES:
Go to Step 2.
NO:
Repair or replace it. Then confirm that the
malfunction symptom is eliminated.
STEP 2. Check the circuit at ECM connector B-11.
(1)
Disconnect the connectors B-11 and measure at the harness
side.
(2)
Turn the ignition switch to the "ON" position.
82 81 80 79 78 77 76 75 74 73 72 71
94 93 92 91 90 89 88 87 86 85 84 83
99 98 97 96 95
100
101
102
103
104
105
106
112
113
114
109 108
107
110
111
115
116
117
118
ZK603208AA00
B-11 harness
connector:
component side
(3)
Measure the voltage between terminal No. 102 and ground.
⦆
Voltage should be battery positive voltage.
(4)
Using a jumper wire, connect terminal No. 102 to ground.
⦆
A/C compressor clutch relay should turn "ON".
(5)
Turn the ignition switch to the "LOCK" (OFF) position.
Q:Is the voltage and A/C compressor relay condition
normal?
YES:
Replace the ECM. When the ECM is replaced, register
the ID code. Refer to GROUP 42B, ID Code Registration
Judgment Table <Vehicles with KOS> P.42B-12or GROUP
42C, ID Code Registration Judgment Table <Vehicles with
WCM> P.42C-8.
NO:
Refer to GROUP 55A, Manual A/C Diagnosis - Heater,
Air Conditioning and Ventilation Diagnostic
Troubleshooting Strategy P.55A-5, or GROUP 55B, Auto
A/C Diagnosis - Automatic A/C Troubleshooting Strategy P.
55B-4.
MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>
13Ab-833
SYMPTOM PROCEDURES
INSPECTION PROCEDURE 26: Engine oil pressure switch System.
M11310100331USA0000010000
ZK602875
1
2
3 4 5 6 7 8 9 10 11 12 13 14 15 16
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
1
ENGINE
CONTROL
MODULE
36
GRA
Y
ENGINE OIL
PRESSURE
SWITCH
B-16
1
ENGINE OIL PRESSURE SWITCH CIRCUIT
AA00
B-10
OFF
ON
ZK603644AA00
Connector: B-16
B-16
Engine oil
pressure switch
ZK603591
ECM
B-10 (GR)
Connector: B-10
AA00
CIRCUIT OPERATION
⦆
Battery voltage is applied to the oil pressure switch
(terminal No. 1) from the engine-ECU (terminal No.
36).
COMMENT
⦆
Detect the engine oil pressure conditions and enter
the result into the ECM. After starting the engine if
the oil pressure rises to higher than the given
pressure, the engine oil pressure switch turns OFF.
Under this condition the ECM sends the command
of turning off the oil warning lamp to the combination
meter via CAN.
TROUBLESHOOTING HINTS (The most likely
causes for this code to be set are:)
⦆
Engine oil pressure switch failed.
⦆
Improper connector contact, open circuit or short-
circuit harness wire.
⦆
ECM failed.
13Ab-834
MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>
SYMPTOM PROCEDURES
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