Mitsubishi Outlander XL. Manual — part 261
STEP 3. Check for harness between the center exhaust pipe
heated oxygen sensor connector D-30 and the ECM
connector B-11.
(1)
Disconnect the center exhaust pipe heated oxygen sensor
connector D-30 and the ECM connector B-11.
D-30 Harness
connector:
component side
2
1
4
3
ZK603267AA00
B-11 Harness
connector:
component side
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
(2)
Measure the resistance between the center exhaust pipe
heated oxygen sensor connector D-30 and the ECM
connector B-11.
a
.
Connector D-30 (terminal No. 4) and connector B-11
(terminal No. 116).
b
.
Connector D-30 (terminal No. 3) and connector B-11
(terminal No. 101).
⦆
Should be less than 2 ohms.
D-30 Harness
connector:
component side
2
1
4
3
ZK603268AA00
(3)
Check for the continuity between the oxygen sensor
connector D-30 and ground.
a
.
Connector D-30 (terminal No. 4) and ground
b
.
Connector D-30 (terminal No. 3) and ground
⦆
Not continuity.
Q:Is the harness wire in good condition?
YES:
Go to Step 4.
NO:
Repair it. Refer to GROUP 00E, Harness Connector
Inspection P.00E-2. Then go to Step 4.
STEP 4. Test the OBD-II drive cycle.
(1)
Carry out a test drive with the drive cycle pattern. Refer to
Diagnostic Function - OBD-II Drive Cycle - Pattern 23 P.
13Ab-8.
(2)
Check the diagnostic trouble code (DTC).
Q:Is DTC P0137 set?
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:
It can be assumed that this malfunction is
intermittent. Refer to GROUP 00, How to Use
MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>
13Ab-239
DIAGNOSTIC TROUBLE CODE PROCEDURES
Troubleshooting/Inspection Service Points How to Cope
with Intermittent Malfunctions P.00-15.
DTC P0144: Heated Oxygen Sensor Circuit High Voltage (bank 1, sensor 3)
M11310100364USA0000010000
ZK602864
1 2
3 4
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
2
8
7
6
5
4
3
11
21
20
19
18
17
16
15
14
13
12
9
22
1
10
AA00
D-30
FROM MFI RELAY
TO ECM
1
4
2
3
CENTER EXHAUST PIPE HEATED OXYGEN SENSOR CIRCUIT
CENTER EXHAUST PIPE
HEATED OXYGEN
SENSOR
B-11
YELLO
W
ORANGE
ORANGE
YELLO
W
ENGINE
CONTROL
MODULE
0.5 V
C-129
15
116
101
17
13Ab-240
MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>
DIAGNOSTIC TROUBLE CODE PROCEDURES
ZK600417 AA00
Center exhaust pipe
heated oxygen sensor
Connector: D-30
D-30 (B)
Rear heater duct
ZK603592
ECM
B-11 (GR)
Connector: B-11
AA00
ZK603651AA00
C-129
Connector: C-129
CIRCUIT OPERATION
⦆
A voltage corresponding to the oxygen
concentration in the exhaust gas is sent to the ECM
(terminal No. 101) from the output terminal (terminal
No. 3) of the Center exhaust pipe heated oxygen
sensor.
⦆
Terminal No. 4 of the Center exhaust pipe heated
oxygen sensor is grounded with ECM (terminal No.
116).
⦆
The ECM applies an offset voltage of 0.5 volt to
terminal No. 4 of the Center exhaust pipe heated
oxygen sensor.
TECHNICAL DESCRIPTION
The ECM checks for the Center exhaust pipe heated
oxygen sensor output voltage.
DESCRIPTIONS OF MONITOR METHODS
Center exhaust pipe heated oxygen sensor output
voltage is over the specified range.
MONITOR EXECUTION
Continuous
MONITOR EXECUTION CONDITIONS (Other
monitor and Sensor)
Other Monitor (There is no temporary DTC stored in
memory for the item monitored below)
Not applicable.
Sensor (The sensor below is determined to be
normal)
Not applicable.
MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>
13Ab-241
DIAGNOSTIC TROUBLE CODE PROCEDURES
DTC SET CONDITION
Logic Flow Chart
Start
End
No
Yes
Yes
Yes
No
No
Malfunction
Good
Continuous
failure for 2secs
Output voltage
> 1.8V
Monitoring
conditions
ZK603713 AA00
Check Conditions
⦆
2 seconds or more have passed since the engine
starting sequence was completed.
⦆
Heated oxygen sensor off set voltage is between
0.4 and 0.6 volt.
Judgement Criterion
⦆
Center exhaust pipe Heated oxygen sensor output
voltage has continued to be 1.8 volts or higher for 2
seconds.
OBD-II DRIVE CYCLE PATTERN
Refer to Diagnostic Function - OBD-II Drive Cycle -
Pattern 24 P.13Ab-8.
TROUBLESHOOTING HINTS (The most likely
causes for this code to be set are: )
⦆
Connector damage.
⦆
Harness damage
⦆
ECM failed.
DIAGNOSIS
Required Special Tools:
⦆
MB991958: Scan tool (M.U.T.-III Sub Assembly)
⦆
MB991824: V.C.I.
13Ab-242
MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>
DIAGNOSTIC TROUBLE CODE PROCEDURES
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