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Mitsubishi Montero (2002-2004). Manual - part 658

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DIAGNOSTIC TROUBLE CODE PROCEDURES

13Ac-329

STEP 15. Check for harness damage between injector
intermediate connector and injector connector.

a. Check the harness wire between injector intermediate con-

nector B-44 (terminal No. 8) and injector connector B-01
(terminal No. 1) when checking No. 1 cylinder injector.

b. Check the harness wire between injector intermediate con-

nector B-44 (terminal No. 8) and injector connector B-33
(terminal No. 1) when checking No. 2 cylinder injector.

c. Check the harness wire between injector intermediate con-

nector B-44 (terminal No. 8) and injector connector B-02
(terminal No. 1) when checking No. 3 cylinder injector.

d. Check the harness wire between injector intermediate con-

nector B-44 (terminal No. 8) and injector connector B-35
(terminal No. 1) when checking No. 4 cylinder injector.

e. Check the harness wire between injector intermediate con-

nector B-44 (terminal No. 8) and injector connector B-03
(terminal No. 1) when checking No. 5 cylinder injector.

f. Check the harness wire between injector intermediate con-

nector B-44 (terminal No. 8) and injector connector B-11
(terminal No. 1) when checking No. 6 cylinder injector.

Q: Is the harness wire in good condition?

YES : Go to Step 16.
NO : Repair it. Then go to Step 17.

STEP 16. Replace the injector.
(1) Replace the injector.
(2) Carry out a test drive with the drive cycle pattern. Refer to

GROUP 13A, Procedure 6

− Other Monitor

P.13Ab-2

(3) Read in the diagnostic trouble code (DTC).
Q: Is DTC P0201, P0202, P0203, P0204, P0205 and P0206

set?
YES : Replace the PCM. Then go to Step 17.
NO : It can be assumed that this malfunction is intermittent.

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

P.00-6

STEP 17. Test the OBD-II drive cycle.
(1) Carry out a test drive with the drive cycle pattern. Refer to

GROUP 13A, Procedure 6

− Other Monitor

P.13Ab-2

(2) Check the diagnostic trouble code (DTC).
Q: Is DTC P0201, P0202, P0203, P0204, P0205 and P0206

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

AK200949

B-44(B)

CONNECTOR: B-44

HARNESS
CONNECTOR:
COMPONENT SIDE

AK200960

B-03(GR)

B-11(GR)

B-35(GR)

B-33(GR)

B-02(GR)

B-01(GR)

CONNECTORS: B-01, B-02, B-03, B-11,

B-33, B-35

HARNESS CONNECTOR:
COMPONENT SIDE

AK200960

B-03(GR)

B-11(GR)

B-35(GR)

B-33(GR)

B-02(GR)

B-01(GR)

CONNECTORS: B-01, B-02, B-03, B-11,

B-33, B-35

HARNESS CONNECTOR:
COMPONENT SIDE

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DIAGNOSTIC TROUBLE CODE PROCEDURES

13Ac-330

P0222 Throttle Position Sensor (Sub) Circuit Low Input

CIRCUIT OPERATION

• A 5-volt power supply is applied on the TPS (sub)

power terminal (terminal No. 2) from the PCM
(terminal No. 106).
The ground terminal (terminal No. 4) is grounded
with PCM (terminal No. 105).

• When the throttle valve shaft is turned from the

idle position to the fully opened position, the
resister between the TPS (sub) output terminal
(terminal No. 3) and ground terminal will increase
according to the rotation.

AK201162

RED

GREEN

BLA

B-05

5 V

106

THROTTLE
POSITION
SENSOR
(SUB)

POWERTRAIN CONTROL MODULE (PCM)

113

105

Throttle Position Sensor (Sub) Circuit

1 2 3 4 5

9192

939495

96979899

100

105

113114

115116117

118119120

106

107108109

110111112

101102103

104

D-135

(MU803805)

AK201173

THROTTLE
POSITION
SENSOR

B-05(B)

CONNECTOR: B-05

AK201038AF

CONNECTOR: D-135

PCM

D-135(GR)

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DIAGNOSTIC TROUBLE CODE PROCEDURES

13Ac-331

TECHNICAL DESCRIPTION

• The TPS (sub) outputs voltage which corre-

sponds to the throttle valve opening angle.

• The PCM checks whether the voltage is within a

specified range.

DTC SET CONDITIONS

Check Conditions

• Ignition switch "ON" position.

Judgement Criteria

• TPS (main) output voltage should be 2.25 volts or

more for 0.5 seconds.

TROUBLESHOOTING HINTS (The most likely
causes for this code to be set are:)

• TPS failed or maladjusted.

• Open or shorted TPS (sub) circuit, or loose con-

nector.

• PCM failed.

DIAGNOSIS

Required Special Tool:

• MB991502: Scan Tool (MUT-II)

STEP 1. Using scan tool MB991502, check data list item 14:
Throttle Position Sensor (sub).

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) Detach the intake air hose at the throttle body.
(4) Disconnect the connector of the throttle position sensor.
(5) Use test harness special tool (MB991348) to connect only

terminals No. 1, No. 2, No. 3, and No. 4.

(6) Set scan tool MB991502 to the data reading mode for item

14, Throttle Position Sensor (sub).

• Output voltage should be between 2.2 and 2.8 volts

when the throttle valve is fully closed with your finger.

• Output voltage should be between 3.8 and 4.9 volts

when the throttle valve is fully open with your finger.

(7) 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 : Go to Step 2.

STEP 2. Check connector B-05 at throttle position sensor
for damage.
Q: Is the connector in good condition?

YES : Go to Step 3.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection

P.00E-2

. Then go to Step 12.

ACX01539

16-PIN

MB991502

AK201174

6 5 4 3 2

B-05(B)

CONNECTOR: B-05

HARNESS
CONNECTOR:
COMPONENT SIDE

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DIAGNOSTIC TROUBLE CODE PROCEDURES

13Ac-332

STEP 3. Measure the sensor supply voltage at throttle
position sensor harness side connector B-05.
(1) Disconnect the connector B-05 and measure at the harness

side.

(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between terminal No. 2 and ground

• Voltage should be between 4.8 and 5.2 volts.

(4) Turn the ignition switch to the "LOCK"(OFF) position.
Q: Is the measured voltage between 4.8 and 5.2 volts?

YES : Go to Step 7.
NO : Go to Step 4.

STEP 4. Check connector D-135 at PCM for damage.
Q: Is the 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 12.

AK201174

6 5 4 3 2

B-05(B)

CONNECTOR: B-05

HARNESS
CONNECTOR:
COMPONENT SIDE

AK200947

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

PCM

D-135(GR)

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