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