Mitsubishi Montero (2002-2004). Manual - part 709
TSB Revision
DIAGNOSTIC TROUBLE CODE PROCEDURES
13Ac-533
.
TROUBLESHOOTING HINTS (The most likely
causes for this code to be set are:)
• Throttle valve return spring failed.
• Throttle valve operation failed.
• Throttle actuator control motor failed or malad-
justed.
• Open or shorted throttle actuator control motor
circuit, or loose connector.
• PCM failed.
DIAGNOSIS
Required Special Tool:
• MB991502: Scan Tool (MUT-II)
STEP 1. Using scan tool MB991502, check data list item
9A: Throttle Position Sensor (main) Mid Opening Learning
Value.
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) Turn the ignition switch to the "ON" position.
(3) Set scan tool MB991502 to the data reading mode for item
9A, Throttle position sensor (main) mid opening learning
value.
• Check that it is 4 volts or less.
(4) Turn the ignition switch to the "LOCK"(OFF) position.
Q: Is voltage 4 volts or less?
YES : Go to Step 2..
NO : Replace the throttle body ASSY. Then go to Step 8.
STEP 2. Check the throttle actuator control motor.
(1) Disconnect the connector B-05.
(2) Measure the resistance between throttle actuator control
motor side connector terminal No. 5 and No. 6.
Standard value: 0.3
− 100 ohms
Q: Is the measured resistance between 0.3 and 100 ohms?
YES : Go to Step 3.
NO : Replace the throttle body ASSY. Then go to Step 8.
ACX01539
16-PIN
MB991502
AC
AK201174
1
6 5 4 3 2
B-05(B)
CONNECTOR: B-05
HARNESS
CONNECTOR:
COMPONENT SIDE
AB
6
1 2 3 4 5
AK201513AB
THROTTLE ACTUATOR
CONTROL MOTOR
SIDE CONNECTOR