Mitsubishi Montero Sport (2004+). Manual — part 535
HEADLIGHT
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CHASSIS ELECTRICAL
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STEP 1. Check the input signal (by using pulse check).
Check the input signal from the driver’s side door switch by
using scan tool MB991958.
CAUTION
To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Connect scan tool MB991958 to the data link connector.
(2) Check that the tone alarm of scan tool MB991958 sounds
when the driver's side door is opened.
Q: Does the tone alarm of scan tool MB991958 sound when
the input signal enters?
YES : Replace the ETACS-ECU. Check that the
malfunctions are eliminated.
NO : Go to Step 3.
STEP 2. Check the input signal from the driver's side door
switch (by using a voltmeter).
Check the input signals from the following switches:
(1) Use special tool MB991529 to connect a voltmeter between
ground terminal 4 or 5 and ETACS-ECU terminal 9 of the
data link connector.
(2) Check that the voltmeter indicator deflects once when the
input signal enters.
Q: Does the voltmeter indicator deflect?
YES : Replace the ETACS-ECU. Check that the
malfunctions are eliminated.
NO : Go to Step 3.
AK303629AB
MB991911
MB991827
MB991824
16-PIN
AC003527
GROUNDED TERMINAL
ETACS-ECU
TERMINAL
MB991529
AB
HEADLIGHT
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CHASSIS ELECTRICAL
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STEP 3. Check the driver's side door switch.
(1) Remove the driver's side door switch. Refer to GROUP 42,
.
(2) Follow the table to check the driver’s side door switch
continuity.
Q: Is the driver's side door switch in good condition?
YES : Go to Step 4.
NO : Replace it. Check that the malfunction is eliminated.
STEP 4. Check the driver's side door switch ground circuit.
Measure the resistance between the driver's side door switch
body (metal section) and ground.
• The measured value should be 2 ohms or less.
Q: Does the measured resistance value correspond with
this range?
YES : Go to Step 5.
NO : Repair the harness wire or connector. Then go to Step
STEP 5. Check driver's side door switch connector E-33
for loose, corroded or damaged terminals, or terminals
pushed back in the connector.
Q: Is driver's side door switch connector E-33 damaged?
YES : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. The tachometer
should work normally.
NO : Go to Step 6.
SWITCH
POSITION
TESTER
CONNECTION
SPECIFIED
CONDITION
Released (ON)
1
− 2, 1 − 3, 2 − 3 Less than 2 ohms
Depressed (OFF) 1
− 2, 1 − 3, 2 − 3 Open circuit
AC002733 AB
1
2
3
AC002734
AC201938
2 1
CONNECTOR: E-33
COMPONENT
SIDE
E-33
AB
HEADLIGHT
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CHASSIS ELECTRICAL
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STEP 6. Check driver's side door switch connector E-33
input circuit.
(1) Disconnect driver's side door switch connector E-33 and the
harness side.
(2) Measure the voltage between terminal 2 and ground.
• The measured value should be approximately 5 volts.
Q: Does the measured voltage correspond with this range?
YES : There is no action to be taken.
NO : Go to Step 7.
AC201938
2 1
CONNECTOR: E-33
COMPONENT
SIDE
E-33
AB
AC002735
CONNECTOR E-33
(HARNESS SIDE)
AB
HEADLIGHT
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CHASSIS ELECTRICAL
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STEP 7. Check the harness wires between driver's side
door switch connector E-33 (terminal No.2) and
ETACS-ECU connector D-11 (terminal No.9).
AC201939
1
3
4
7 6 5
2
9
11
12
10
13
8
1
8
3
4
5
7 6
10
15
16
14
12
13
11
9
2
CONNECTORS: D-11, D-14
D-11
D-14 (B)
D-11 COMPONENT SIDE
D-14 COMPONENT SIDE
AB
JUNCTION BLOCK
(FRONT)
AC201940
2 1
8
19
7
6
5
16
15
17 18
4
3
2
10 11 12 13
1
9
14
CONNECTORS: E-33, E-42
AC
E-33 (B)
E-42
COMPONENT SIDE
E-42
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