Mitsubishi Montero (2002-2004). Manual - part 603

 

  Index      Mitsubishi     Mitsubishi Montero - service repair manual 2002-2004 year

 

Search            

 

 

 

 

 

 

 

 

 

Content   ..  601  602  603  604   ..

 

 

Mitsubishi Montero (2002-2004). Manual - part 603

 

 

TSB Revision

DIAGNOSTIC TROUBLE CODE PROCEDURES

13Ac-109

STEP 3. Measure the sensor output voltage at PCM 
connector D-135 by backprobing
(1) Do not disconnect the connector D-135.
(2) Start the engine and run at idle.

(3) Measure the voltage between terminal No. 109 and ground 

by backprobing.

• Warming up the engine. When the engine is 2,500 r/min, 

the output voltage should repeat 0 to 0.8 volt alternately.

(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the voltage normal?

YES : Go to Step 4.
NO :  Go to Step 6.               

AK200947

91

92

93

94

95

96

97

98

99

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

CONNECTOR: D-135

HARNESS CONNECTOR: 
COMPONENT SIDE

AB

PCM

D-135(GR)

AK201396

9192

939495

96979899

100 101102103

104

105106

107108109

110111112

113114

115116117

118119120

AB

D-135 HARNESS 
CONNECTOR:
HARNESS SIDE

TSB Revision

DIAGNOSTIC TROUBLE CODE PROCEDURES

13Ac-110

STEP 4. Check harness connector B-07 at right bank 
heated oxygen sensor (front) and harness connector D-
135 at PCM for damage.
Q: Is the harness connector in good condition?

YES : Go to Step 5.
NO :  Repair or replace it. Refer to GROUP 00E, Harness 

Connector Inspection 

P.00E-2

. Then go to Step 15. 

AK201274

1

2

3

4

CONNECTOR: B-07

B-07(B)

AB

HARNESS 
CONNECTOR: 
COMPONENT SIDE

RIGHT BANK
HEATED OXYGEN
SENSOR (FRONT)

AK200947

91

92

93

94

95

96

97

98

99

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

CONNECTOR: D-135

HARNESS CONNECTOR: 
COMPONENT SIDE

AB

PCM

D-135(GR)

TSB Revision

DIAGNOSTIC TROUBLE CODE PROCEDURES

13Ac-111

STEP 5. Using scan tool MB991502, check data list item 39: 
Right Bank Heated Oxygen Sensor Bank 1, Sensor 1 (right 
front).

CAUTION

To prevent damage to scan tool MB991502, always turn the 
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991502.
(1) Connect scan tool MB991502 to the data link connector.
(2) Start the engine and run at idle.
(3) Set scan tool MB991502 to the data reading mode for item 

39, Heated Oxygen Sensor Bank 1, Sensor 1 (right front).

• Warming up the engine. When the engine is revved, the 

output voltage should be 0.6 to 1.0 volt.

• Warming up the engine. When the engine is idling, the 

output voltage should repeat 0.4 volt and 0.6 to 1.0 volt 
alternately.

(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the sensor operating properly?

YES : It can be assumed that this malfunction is intermittent. 

Refer to GROUP 00, How to Use Troubleshooting/
Inspection Service Points 

P.00-6

.

NO :  Replace the PCM. Then go to Step 15.

ACX01539

16-PIN

MB991502

AC

TSB Revision

DIAGNOSTIC TROUBLE CODE PROCEDURES

13Ac-112

STEP 6. Check harness connector B-07 at right bank 
heated oxygen sensor (front) and harness connector D-
135 at PCM for damage.
Q: Is the harness connector in good condition?

YES : Repair harness wire between right bank heated 

oxygen sensor (front) connector B-07 (terminal No. 4) 
and PCM connector D-135 (terminal No. 109) 
because of open circuit or harness damage. Then go 
to Step 15.

NO :  Repair or replace it. Refer to GROUP 00E, Harness 

Connector Inspection 

P.00E-2

. Then go to Step 15. 

AK201274

1

2

3

4

CONNECTOR: B-07

B-07(B)

AB

HARNESS 
CONNECTOR: 
COMPONENT SIDE

RIGHT BANK
HEATED OXYGEN
SENSOR (FRONT)

AK200947

91

92

93

94

95

96

97

98

99

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

CONNECTOR: D-135

HARNESS CONNECTOR: 
COMPONENT SIDE

AB

PCM

D-135(GR)

 

 

 

 

 

 

 

Content   ..  601  602  603  604   ..