Auto-Cruise Control Vacuum Pump Inspection - Mitsubishi 1989-1993 GALANT Service Manual

AUTO-CRUISE CONTROL SYSTEM
Control
valve
2
TSB Revision

AUTO-CRUISE CONTROL VACUUM PUMP INSPECTION

<Vacuum type: From 1991 models>
Inspection of solenoid valves (control valve, release valve)
(1) Remove the auto-cruise control vacuum pump
(2) Measure the resistance value between
and between 0-0.
Standard value: 50-60 Q
(3) Check that the solenoid valve makes an operating noise
when batten/ voltage is impressed between terminals
(4) If there is a malfunction of the solenoid valve, replace the
auto-cruise control vacuum pump assembly.
Motor inspection
(1) Remove the auto-cruise control vacuum pump connector.
(2) Check that the motor revolves when battery voltage is
impressed between terminals @-0.
ACTUATOR INSPECTION
<Vacuum type: From 1991 models>
(1) Remove the actuator.
(2) Apply negative pressure to the actuator with the vacuum
pump and check that the holder moves more than 35 mm
(1.38 in.). In addition, check that there is no change in the
position of the holder when negative pressure is main-
tained in that condition.
(3) First install the actuator and then inspect and adjust the
cruise control cable (Refer to P.13-394.)
VEHICLE-SPEED SENSOR INSPECTION
Refer to GROUP 54-Meters and Gauges for checking of
vehicle speed sensor.
ACCELERATOR SWITCH INSPECTION
Refer to GROUP 23-Troubleshooting.
connector.
terminals 0-0