Mitsubishi Montero (1991+). Manual - part 57

CRUISE CONTROL SYSTEM 



1991 Mitsubishi Montero

         1991-92 SAFETY EQUIPMENT

         Mitsubishi Cruise Control Systems

         Montero

         DESCRIPTION & OPERATION

         The cruise control system is electronically and vacuum

controlled. System components include a control unit, actuator, vacuum

pump, cruise control switch, clutch pedal switch, cruise indicator

light, diode, inhibitor switch (A/T), stoplight switch, vehicle speed

sensor and A/T control unit.

         The system has self-diagnostic capability. When

self-diagnostic mode is activated, each switch and sensor is checked

for defects. When cruise control system has been cancelled without

using a normal cancel method, a code will be set and stored in control

unit. Codes can be retrieved to help determine which circuit is

malfunctioning.

         PRELIMINARY INSPECTION

         Before performing TROUBLE SHOOTING steps, inspect linkage

assembly, actuator, cables and vacuum hoses. Ensure linkage and cables

move smoothly. Ensure cables do not have excessive slack or tension.

         TROUBLE SHOOTING

NOTE:    For further trouble shooting information, see CHECK RESULTS

         & SYMPTOM CHARTS. See Figs. 11-16.

         SYSTEM CANCELS OR WILL NOT RESET AFTER CANCELLATION

         1) Check trouble codes, see SELF-DIAGNOSTICS under DIAGNOSIS

& TESTING. If no trouble codes are stored, ensure cruise control can

be set.

         2) If cruise control can be set, system may have cancelled

because of driving on steep hills or loose wiring connection. If

cruise control still cannot be set, perform SYSTEM INPUT TESTS under

DIAGNOSIS & TESTING.

         3) On 1991 models, if SYSTEM INPUT TESTS check okay, check

actuator circuit. See TEST NO. 5 under CIRCUIT TESTS (1991). On 1992

models, if SYSTEM INPUT TESTS check okay, check vacuum pump circuit.

See TEST NO. 6 under CIRCUIT TESTS (1992). On all models, if SYSTEM

INPUT TESTS do not check okay, see INPUT CODE CHART. See  Fig. 9 or 10.

         ADJUSTMENTS

         CRUISE CONTROL CABLE

         1991

         1) Ensure cruise control and accelerator cables are free of

bends and folds. Remove actuator cover. Loosen lock nuts and adjusting

nuts to free cables. Adjust accelerator cable "A" to correct

dimension. See Fig. 1 or 2.

         2) Tighten lock nuts. Loosen adjustment bolts on intake air

plenum. Adjust plate so that inner cable free play is .04-.08" (1-2

mm). Tighten adjustment plate bolts.

         3) Ensure throttle link is touching fixed Speed Adjusting

Screw (SAS). With intermediate link "A" in contact with stopper,

tighten adjusting nut "A" in direction that reduces inner cable free

play. See Fig. 3.

         4) Stop turning adjusting nut "A" just before intermediate

link "A" begins to move. Back off adjusting nut "A" 1/2 turn. Inner

cable free play should be 0-.04" (0-1 mm). Tighten lock nut. Ensure

the distance intermediate link "B" begins to move when selector of

actuator turns is 04-.08" (1-2 mm). See Fig. 4.

         5) Press accelerator pedal to ensure intermediate links "A"

and "B" operate smoothly. Install actuator cover.

Fig. 1:  Adjusting Cruise Control & Accelerator Cables (1991 - 1 Of 4)

Courtesy of Mitsubishi Motor Co.

Fig. 2:  Adjusting Cruise Control & Accelerator Cables (1991 - 2 Of 4)

Courtesy of Mitsubishi Motor Co.

Fig. 3:  Adjusting Cruise Control & Accelerator Cables (1991 - 3 Of 4)

Courtesy of Mitsubishi Motor Co.

Fig. 4:  Adjusting Cruise Control & Accelerator Cables (1991 - 4 Of 4)

Courtesy of Mitsubishi Motor Co.

         1992

         Remove link protector. Loosen lock nut. Hold link "A" so that

it touches link "B". Adjust free play by turning adjusting nut until

free play is .04-.08" (1-2 mm). Tighten lock nut. See  Fig. 5.

Fig. 5:  Adjusting Cruise Control Cable (1992)

Courtesy of Mitsubishi Motor Co.

         DIAGNOSIS & TESTING