Mitsubishi Outlander XL. Manual — part 220
DESCRIPTIONS OF MONITOR METHODS
Center exhaust pipe heated oxygen sensor heater
current or voltage is out of 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-75
DIAGNOSTIC TROUBLE CODE PROCEDURES
DTC SET CONDITION
Logic Flow Chart
Start
End
Yes
Yes
Yes
No
No
No
Malfunction
Good
Continuous
failure for 2secs
Monitoring
conditions
Current < 0.17A
or
Current > 10.5A
Voltage < 2.0V
ZK603657 AA00
Heater ON
Yes
Yes
No
Check Conditions
⦆
More than 2 seconds have passed since the engine
starting sequence was completed.
⦆
While the center exhaust pipe heated oxygen
sensor (front) heater is on.
⦆
Battery positive voltage is between 11 and 16.5
volts.
Judgement Criterion
⦆
The center exhaust pipe heated oxygen sensor
(front) heater current has continued to be lower than
0.17 ampere for 2 seconds.
Check Conditions
⦆
More than 2 seconds have passed since the engine
starting sequence was completed.
⦆
While the center exhaust pipe heated oxygen
sensor (front) heater is off.
⦆
Battery positive voltage is between 11 and 16.5
volts.
Judgement Criterion
⦆
The center exhaust pipe heated oxygen sensor
(front) heater voltage has continued to be lower
than 2.0 voltage for 2 seconds.
13Ab-76
MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>
DIAGNOSTIC TROUBLE CODE PROCEDURES
OBD-II DRIVE CYCLE PATTERN
Refer to Diagnostic Function - OBD-II Drive Cycle -
Pattern 2 P.13Ab-8.
TROUBLESHOOTING HINTS (The most likely
causes for this code to be set are: )
⦆
Connector damage.
⦆
Center exhaust pipe heated oxygen sensor heater
failed.
⦆
Harness damage
⦆
ECM failed.
DIAGNOSIS
Required Special Tool:
⦆
MB991658: Test Harness
STEP 1. Check harness connector D-30 at the center
exhaust pipe heated oxygen sensor (front) and the
connector B-11 at ECM for damage.
Q:Is the harness connector in good condition?
YES:
Go to Step 2.
NO:
Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection P.00E-2. Then go to Step 6.
STEP 2. Check the center exhaust pipe heated oxygen
sensor.
ZK600444
MB991658
AA00
Heated oxygen
sensor component
side connector
(1)
Disconnect center exhaust pipe heated oxygen sensor
connector D-30 and connect test harness special tool,
MB991658, to the connector on the center exhaust pipe
heated oxygen sensor side.
(2)
Measure the resistance between heated oxygen sensor
connector terminal No. 1 and terminal No. 2.
Standard value: 4.5 - 8.0 Ω [at 20°C (68°F)]
Q:Is the measured resistance between 4.5 and 8.0 ohms [at
20°C (68°F)]?
YES:
Go to Step 3.
NO:
Replace the center exhaust pipe heated oxygen sensor
(front). Then go to Step 6.
STEP 3. Measure the power supply voltage at the center
exhaust pipe heated oxygen sensor harness side connector
D-30.
(1)
Disconnect the connector D-30 and measure at the harness
side.
(2)
Turn the ignition switch to the "ON" position.
MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>
13Ab-77
DIAGNOSTIC TROUBLE CODE PROCEDURES
ZK603159
2 1
4 3
D-30 harness
connector:
component side
AA00
(3)
Measure the voltage between terminal No. 1 and ground.
⦆
Voltage should be battery positive voltage.
(4)
Turn the ignition switch to the "LOCK" (OFF) position.
Q:Is battery positive voltage (approximately 12 volts)
present?
YES:
Go to Step 4.
NO:
Check harness connector C-129 at Intermediate
connector for damage, and repair as required.Refer to
GROUP 00E, Harness Connector Inspection P.00E-2. If the
Intermediate connector C-129 is good condition, repair
harness wire between MFI relay connector A-33X (terminal
No. 2) and center exhaust pipe heated oxygen sensor
connector D-30 (terminal No. 1) because of open circuit
or harness damage.Then go to step 6.
STEP 4.Check for open circuit to ground or harness damage
between the center exhaust pipe heated oxygen sensor
connector D-30 and ECM connector B-11.
(1)
Disconnect the right bank heated oxygen sensor (rear)
connector D-30 and the ECM connector B-11.
ZK603160
2 1
4 3
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
AA00
B-11 harness
connector:
component side
D-30 harness
connector:
component side
(2)
Measure the resistance between the heated oxygen sensor
connector D-30 (terminal No. 2) and ECM connector B-11
(terminal No. 118).
⦆
Should be less than 2 ohms.
ZK603161
2 1
4 3
D-30 harness
connector:
component side
AA00
(3)
Check for the continuity between the oxygen sensor
connector D-30 (terminal No. 2) and ground.
⦆
Not continuity.
Q:Is the harness wire in good condition?
YES:
Go to Step 5.
NO:
Repair it. Then go to Step 6.
13Ab-78
MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>
DIAGNOSTIC TROUBLE CODE PROCEDURES
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