ignition MITSUBISHI MONTERO 1991 Owner's Guide
[x] Cancel search | Manufacturer: MITSUBISHI, Model Year: 1991, Model line: MONTERO, Model: MITSUBISHI MONTERO 1991Pages: 1333, PDF Size: 24.61 MB
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2) System input tests cycle each cruise control switch and
sensor. Use analog voltmeter or Multi-Use Tester (MB991341) for system\
input check. Use multi-use tester according to operating instructions
provided with tester. Connect leads of analog voltmeter between cruise
control terminal and ground terminal of self-diagnostic connector. See
Fig. 6.
3) Turn ignition on and check items No. 1-3 on INPUT CODE
CHART. See Fig. 9 0r 10. Start engine and check items No. 4 and 5 on
INPUT CODE CHART. To display results of each input check, press SET
switch while holding RESUME switch in ON position. Read codes. Codes
will display if circuit tested is okay.
1992
1) System input tests should be performed if no trouble codes
are stored when performing SELF-DIAGNOSTICS. System input tests cycle
each cruise control switch and sensor.
2) Use Multi-Use Tester (MB991341) for system input check.
Use multi-use tester according to operating instructions provided with
tester. Connect leads of analog voltmeter between cruise control
terminal and ground terminal of self-diagnostic connector. See Fig. 6.
Turn ignition switch to ON position. Follow INPUT CODE CHART sequence.
See Fig. 9 or 10.
3) To display results of input check, move SET switch to ON
position. Then turn MAIN switch to ON position. Within one second,
activate RESUME switch. Codes will display if circuit tested is okay.
Fig. 9: 1991 Input Code Chart
Courtesy of Mitsubishi Motor Co.
Page 239 of 1333

Test No. 1 (Power & Ground Circuit)
1) Turn ignition on. When cruise control main switch is
turned to ON position, battery voltage should be present on terminal
No. 7 of cruise control unit connector.
2) If voltage is not present, check fuse No. 3 and replace as
necessary. If fuse is okay, check and repair harness as necessary.
Terminal No. 10 should be grounded at all times. If terminal No. 10 is
not grounded, repair harness.
Test No. 2 (Set Switch Circuits)
When set switch is turned to ON position, voltage should not
be present on terminal No. 5 of cruise control unit. When set switch
is turned to OFF position, battery voltage should be present on
terminal No. 5 of cruise control unit. If circuit does not test
correctly, replace switch as necessary or repair harness.
Test No. 3 (Resume Switch Circuit)
When resume switch is turned to ON position, voltage should
not be present on terminal No. 4 of cruise control unit. When resume
switch is turned to OFF position, battery voltage should be present on
terminal No. 4 of cruise control unit. If circuit does not test
correctly, replace switch as necessary or repair harness.
Test No. 4 (Vehicle Speed Sensor Circuit)
When vehicle moves slowly, voltage should alternate from zero
volts to 3-5 volts at terminal No. 15 of cruise control unit. If
circuit does not test correctly, replace sensor as necessary or repair
harness.
Test No. 5 (Actuator Circuit)
1) When cruise control main switch is in On position, voltage
should not be present on terminal No. 8 of cruise control unit.
2) When vehicle is accelerated using resume switch, voltage
should not be present on terminal No. 9 of cruise control unit. When
vehicle is coasting by using set switch, battery voltage should be
present on terminal No. 9.
3) When vehicle is accelerated using resume switch, battery
voltage should be present on terminal No. 20 of cruise control unit.
When vehicle is coasting by using set switch, voltage should not be
present on terminal No. 20 of cruise control unit. If circuit does not
test correctly, replace actuator as necessary or repair harness.
Test No. 6 (Stoplight Switch Circuit)
1) When brake pedal is pressed, battery voltage should be
present on terminal No. 3 of cruise control unit. If voltage is not
present, adjust or replace brake switch.
2) Battery voltage should be present at all times on terminal
No. 11 of cruise control unit. If voltage is not present, check fuse
no. 7. If fuse is okay, repair harness.
Test No. 7 (Inhibitor Switch Circuit)
1) When gear shift lever is moved to Neutral or Park
position, voltage should not be present on terminal No. 2 of cruise
control unit.
2) When gear shift lever is moved to any other position,
battery voltage should be present on terminal No. 2 of cruise control
unit. If circuit does not test correctly, replace switch as necessary
or repair harness.
Test No. 8 (Clutch Switch Circuit)
When clutch pedal is pressed, battery voltage should be
present at terminal No. 1 of cruise control unit. If circuit does not
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Fig. 21: 1991 Acturator Connector
Courtesy of Mitsubishi Motor Co.
CIRCUIT TESTS (1992)
NOTE: To identify circuit connector terminals, See Figs. 22-29.
For wiring diagram, See appropriate chassis wiring diagram in
the WIRING DIAGRAMS Section.
Test No. 1 (Power & Ground Circuit)
1) Turn ignition on. When cruise control main switch is
turned to ON position, battery voltage should be present on terminal
No. 2 of cruise control unit connector.
2) If voltage is not present, check fuse No. 11 and replace
as necessary. If fuse is okay, check and repair harness as necessary.
Terminal No. 8 should be grounded at all times. If terminal No. 8 is
not grounded, repair harness.
Test No. 2 (Set Switch Circuits)
When set switch is turned to ON position, 3 volts should be
present on terminal No. 18 of cruise control unit. When set switch is
turned to OFF position, voltage should not be present on terminal No.
18 of cruise control unit. If circuit does not test correctly, replace
switch as necessary or repair harness.
Test No. 3 (Resume Switch Circuit)
When resume switch is turned to ON position, 6 volts should
be present on terminal No. 18 of cruise control unit. When resume
switch is turned to OFF position, voltage should not be present on
terminal No. 18 of cruise control unit. If circuit does not test
correctly, replace switch as necessary or repair harness.
Test No. 4 (Cancel Switch Circuit)
When cancel switch is turned to On position, battery voltage
should be present on terminal No. 18 of cruise control unit. When
cancel switch is in Off position, voltage should not be present on
terminal No. 18 of cruise control unit. If circuit does not test
correctly, replace switch as necessary or repair harness.
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Colt, Colt 200, Mirage & Summit
Remove defogger timer from junction block under left side of
instrument panel. Connect a battery and test light to defogger timer
terminals. See Fig. 3. Apply battery voltage to terminal No. 7 for 5-7
seconds. Ensure test light illuminates for approximately 10 seconds.
Reapply battery voltage to terminal No. 7. Test light should go off
when voltage is applied again.
Colt Vista
With ignition switch in ON position, apply battery voltage to
terminal No. 2 of defogger timer. Timer should operate for
approximately 11 seconds then stop. See Fig. 3.
Eclipse & Galant
Remove defogger timer from interior relay block. Connect
battery voltage and test light to timer. See Fig. 3. Ensure test light
illuminates for approximately 11 seconds when battery voltage is
applied to terminal No. 4. Reapply battery voltage to terminal No. 4
and observe test light. Test light should go off.
Fig. 3: Identifying Defogger Timer Terminals
Courtesy of Chrysler Motors.
GRID TEST
1) Start engine and operate at 2000 RPM. Ensure battery is
fully charged. Turn defogger switch to ON position. Using a voltmeter,
check voltage at center section of each grid wire. If voltage is
approximately 6 volts, grid wire is okay. If voltage is approximately
12 volts, an open is present in the negative circuit. Move probe
slowly toward the negative terminal to determine location of open
circuit.
2) If voltage is zero volt, an open is present in the
positive circuit. Move probe slowly toward the positive terminal to
Page 351 of 1333

Ignition Timing Adjustment Under wiper motor.
Fuel Pump Check In right side kick panel.