Mitsubishi Montero (2002-2004). Manual - part 665

TSB Revision

DIAGNOSTIC TROUBLE CODE PROCEDURES

13Ac-357

STEP 2. Check the continuity at knock sensor harness 
side connector B-09.
(1) Disconnect the connector B-09 and measure at the harness 

side.

(2) Check for the continuity between terminal No. 2 and 

ground.

• Should be less than 2 ohms.

Q: Is the continuity normal?

YES : Go to Step 3.
NO :  Repair an open circuit or harness damage between 

knock sensor connector B-09 (terminal No. 2) and 
ground. Then go to Step 6.

STEP 3. Check harness connector D-134 at PCM for 
damage.
Q: Is the harness connector in good condition?

YES : Go to Step 4.
NO :  Repair or replace it. Refer to GROUP 00E, Harness 

Connector Inspection 

P.00E-2

. Then go to Step 6.

AK200961

1

2

CONNECTOR: B-09

B-09(GR)

KNOCK
SENSOR

AB

HARNESS 
CONNECTOR: 
COMPONENT SIDE

AKX01415AN

B-09 HARNESS 
CONNECTOR: 
COMPONENT SIDE

1

2

AK201166

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62

63

64

65

66

67

68

69

70

71

76

77

78

79

85

86

87

80

72

73

74

75

81

82

83

84

88

89

CONNECTOR: D-134

AB

PCM

D-134(GR)

HARNESS CONNECTOR: 
COMPONENT SIDE

TSB Revision

DIAGNOSTIC TROUBLE CODE PROCEDURES

13Ac-358

STEP 4. Check for open circuit, short circuit to ground and 
harness damage between knock sensor connector B-09 
(terminal No. 1) and PCM connector D-134 (terminal No. 
89).
Q: Is the harness wire in good condition?

YES : Go to Step 5.
NO :  Repair it. Then go to Step 6.

AK200961

1

2

CONNECTOR: B-09

B-09(GR)

KNOCK
SENSOR

AB

HARNESS 
CONNECTOR: 
COMPONENT SIDE

AK201166

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62

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64

65

66

67

68

69

70

71

76

77

78

79

85

86

87

80

72

73

74

75

81

82

83

84

88

89

CONNECTOR: D-134

AB

PCM

D-134(GR)

HARNESS CONNECTOR: 
COMPONENT SIDE

TSB Revision

DIAGNOSTIC TROUBLE CODE PROCEDURES

13Ac-359

STEP 5. Check the knock sensor.
(1) Disconnect the knock sensor connector B-09.
(2) Start the engine and run at idle.
(3) Measure the voltage between knock sensor side connector 

terminal No. 1 (output) and No. 2 (ground).

(4) Gradually increase the engine speed.

• The voltage increases with the increase in the engine 

speed.

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

YES : Replace the PCM. Then go to Step 6.
NO :  Replace the knock sensor. Then go to Step 6.

STEP 6. Using scan tool MB991502, read the diagnostic 
trouble code (DTC).

CAUTION

CAUTIONTo prevent damage to scan tool MB991502, 
always turn the ignition switch to the "LOCK" (OFF) posi-
tion before connecting or disconnecting scan tool 
MB991502.
(1) Connect scan tool MB991502 to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) Erase the DTC.
(4) Test drive under the following conditions:

• Engine speed: 3000 − 5000r/min

• Engine load : 40 % or more

• Drive a minimum of 3 seconds after the above condi-

tions have been met.

(5) After completing the test drive, read the DTC.Turn the 

ignition switch to the "LOCK" (OFF) position.

Q: Is DTC P0325 set?

YES : The inspection is complete.
NO :  Retry the troubleshooting.

AK200961

1

2

CONNECTOR: B-09

B-09(GR)

KNOCK
SENSOR

AB

HARNESS 
CONNECTOR: 
COMPONENT SIDE

ACX01539

16-PIN

MB991502

AC

TSB Revision

DIAGNOSTIC TROUBLE CODE PROCEDURES

13Ac-360

DTC P0335: Crankshaft Position Sensor Circuit

WHITE-

BLA

CK

WHITE-

BLA

CK

RED

AK201142

SKY B

ULE

BLUE-RED

MFI RELAY

BATTERY

70

88

3

2

1

3 4

1 2

B-22X

5V

POWERTRAIN
CONTROL
MODULE (PCM)

3

1 2

B-36

MU802603

3

2

1

4

CRANKSHAFT
POSITION
SENSOR

Crankshaft Position Sensor Circuit

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656667686970 717273
74757677787980 8182
8384

858687

8889

62

6364

D-134

(MU803804)