Mitsubishi Montero (2004+). Manual — part 406

AUTO-CRUISE CONTROL

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ENGINE AND EMISSION CONTROL

17-31

STEP 4. Check stoplight switch connector D-123 for
looser, corroded or damaged terminals, or terminals
pushed back in the connector.
Q: Are the connector and terminals in good condition?

YES : Go to Step 5.
NO : Repair or replace the damaged components. Refer to

GROUP 00E, Harness Connector Inspection

P.00E-2

.

STEP 5. Measure the stoplight switch power supply
voltage at connector D-123 by backprobing.
(1) Do not disconnect connector D-123.
(2) Turn the ignition switch to the "ON" position.

(3) Measure the voltage between terminal 3 and ground by

backprobing.

• When the brake pedal is depressed, voltage should

measure battery positive voltage.

• When the brake pedal is not depressed, voltage should

measure less than 1 volt.

Q: Does the voltage measure the battery positive voltage

when the brake pedal is depressed, and measure one
volt or less when the pedal is released?
YES : Go to Step 8.
NO : Go to Step 6.

1

2

3

4

AC204682AB

CONNECTOR: D-123

D-123

1

2

3

4

AC204682AB

CONNECTOR: D-123

D-123

2

1

3

4

AC205055AB

D-123 HARNESS
CONNECTOR:
HARNESS SIDE

AUTO-CRUISE CONTROL

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ENGINE AND EMISSION CONTROL

17-32

STEP 6. Check stoplight switch connector D-123,
intermediate connector D-125, intermediate connector
E-110 and PCM connector D-133 for looser, corroded or
damaged terminals, or terminals pushed back in the
connector.

1

2

3

4

AC204682AB

CONNECTOR: D-123

D-123

AC205043

CONNECTOR: D-125

D-125

AB

AC205045

6

1

7

2

9

8

10

3

5

12

11

4

1314

E-110

CONNECTOR: E-110

AB

AUTO-CRUISE CONTROL

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ENGINE AND EMISSION CONTROL

17-33

Q: Are the connectors and terminals in good condition?

YES : Go to Step 7.
NO : Repair or replace the damaged components. Refer to

GROUP 00E, Harness Connector Inspection

P.00E-2

.

AC205046

CONNECTOR: D-133

D-133(GR)

PCM

AB

AUTO-CRUISE CONTROL

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ENGINE AND EMISSION CONTROL

17-34

STEP 7. Check the harness for an open circuit or damage
between stoplight switch connector D-123 terminal 3 and
PCM connector D-133 terminal 54.
Q: Is the harness wire in good condition?

YES : Go to Step 8.
NO : Repair or replace the harness wire.

1

2

3

4

AC204682AB

CONNECTOR: D-123

D-123

AC205046

CONNECTOR: D-133

D-133(GR)

PCM

AB