Mitsubishi Montero (2002-2004). Manual - part 887

DIAGNOSTIC TROUBLE CODE PROCEDURES <AUTOMATIC TRANSMISSION>

TSB Revision

DIAGNOSTIC TROUBLE CODE PROCEDURES

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STEP 3. Check crankshaft position sensor connector B-36 
and PCM connector D-134 for loose, corroded or damaged 
terminals, or terminals pushed back in the connector.
Q: Are the connectors and terminals in good condition?

YES : Go to Step 4.
NO :  Repair or replace the damaged components. Refer to 

GROUP 00E, Harness Connector Inspection 

P.00E-

2

.

AC204168

CONNECTOR : B-36

B-36(B)

AB

2

1

3

AC204681AC

CONNECTOR: D-134

D-134 (GR)

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DIAGNOSTIC TROUBLE CODE PROCEDURES <AUTOMATIC TRANSMISSION>

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DIAGNOSTIC TROUBLE CODE PROCEDURES

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STEP 4. Using scan tool MB991502, check data list item 21: 
Crankshaft Position Sensor.

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) With the gear selector lever in the "P" position, start the 

engine and run at idle.

(3) Set scan tool MB991502 to data reading mode for item 21, 

Crankshaft Position Sensor.

• When the accelerator pedal is not depressed (throttle 

valve is fully closed) the display on scan tool MB991502 
should be "600 to 900 r/min."

• With the accelerator pedal depressed, the engine speed 

display on scan tool MB991502 should increase accord-
ing to engine speed.

(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Does the engine speed display increase according to 

engine speed when the accelerator pedal is depressed?
YES : It can be assumed that this malfunction is intermittent. 

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

− How to Cope with 

Intermittent Malfunction 

P.00-6

.

NO :  Replace the PCM.

STEP 5. Check crankshaft position sensor connector B-36 
for loose, corroded or damaged terminals, or terminals 
pushed back in the connector.
Q: Are the connector and terminals in good condition?

YES : Go to Step 6.
NO :  Repair or replace the damaged components. Refer to 

GROUP 00E, Harness Connector Inspection 

P.00E-

2

.

ACX01539AD

MB991502

16-PIN

AC204168

CONNECTOR : B-36

B-36(B)

AB

2

1

3

DIAGNOSTIC TROUBLE CODE PROCEDURES <AUTOMATIC TRANSMISSION>

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DIAGNOSTIC TROUBLE CODE PROCEDURES

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STEP 6. Measure the sensor output voltage at crankshaft 
position sensor connector B-36.
(1) Disconnect connector B-36 and measure at the harness 

side.

(2) Turn the ignition switch to the "ON" position.

(3) Measure the voltage between terminal 2 and ground.

• The voltage should measure between 4.9 and 5.1 volts.

(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the measured voltage between 4.9 and 5.1 volts?

YES : Go to Step 12.
NO :  Go to Step 7.

AC204168

CONNECTOR : B-36

B-36(B)

AB

2

1

3

AC204918 AD

B-36 HARNESS CONNECTOR : 
COMPONENT SIDE

2

3

1

DIAGNOSTIC TROUBLE CODE PROCEDURES <AUTOMATIC TRANSMISSION>

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DIAGNOSTIC TROUBLE CODE PROCEDURES

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STEP 7. Measure the sensor output voltage at PCM 
connector D-134 by backprobing.
(1) Do not disconnect connector D-134.
(2) Disconnect connector B-36 at the crankshaft position 

sensor.

(3) Turn the ignition switch to the "ON" position.

(4) Measure the voltage between terminal 70 and ground by 

backprobing.

• Voltage should measure between 4.9 and 5.1 volts.

(5) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the measured voltage between 4.9 and 5.1 volts?

YES : Go to Step 8.
NO :  Go to Step 10.

AC204681AC

CONNECTOR: D-134

D-134 (GR)

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D-134 HARNESS CONNECTOR : 
HARNESS SIDE

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