1991 MITSUBISHI MONTERO Service Manual

Fig. 11: Check Results Chart
Courtesy of Mitsubishi Motor Co.

Fig. 12: 1991 Symptom Chart (1 Of 2)
Courtesy of Mitsubishi Motor Co.

Fig. 13: 1991 Symptom Chart (2 Of 2)
Courtesy of Mitsubishi Motor Co.

Fig. 14: 1992 Check Results Chart
Courtesy of Mitsubishi Motor Co.

Fig. 15: 1992 Symptom Chart (1 Of 2)
Courtesy of Mitsubishi Motor Co.

Fig. 16: 1992 Symptom Chart (2 Of 2)
Courtesy of Mitsubishi Motor Co.
CIRCUIT TESTS (1991)
NOTE: To identify circuit connector terminals, See Figs. 17-21.
For wiring diagram, See appropriate chassis wiring
diagram in the WIRING DIAGRAMS Setion.

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

test correctly, replace switch as necessary or repair harness.
Test No. 9 (Overdrive Switch Circuit)
When overdrive switch is pushed to ON position, battery
voltage should be present on terminals No. 13 and 14 of cruise control
unit. If circuit does not test correctly, replace switch as necessary
or repair harness.
Fig. 17: 1991 Cruise Control Unit Connector
Courtesy of Mitsubishi Motor Co.
Fig. 18: 1991 Instrument Cluster Connector
Courtesy of Mitsubishi Motor Co.