Mitsubishi 1989-1993 GALANT Service Manual page 495

AUTO-CRUISE CONTROL SYSTEM
Trouble symptom
Cannot accelerate or resume speed
by using the RESUME switch.
there is no automatic cancellation at
that speed.
The indicator light of combination
neter does not illuminate.
But auto-cruise control system is
IN/OFF switchrng of ELC 4 AT
Non-operation of torque converter
ixed speed driving. <A/T>
Probable cause
Damaged or discon-
circuit, of RESUME
switch input circuit
Auto-cruise vacuum
pump circuit poor con-
tact
Malfunction of the auto-
cruise vacuum pump
and actuator (including
air leak from negative
pressure passage)
Malfunction of the ECU
Malfunction of the
vehicle-speed sensor
circuit
Malfunction of the
speedometer cable or
the speedometer drive
gear
Malfunction of the ECU
Damaged or discon-
light
Harness damaged or
disconnected
Malfunction of circuit re-
lated to accelerator
switch OFF function
Malfunction of the ECU
Malfunction of circuit re-
lated to overdrive can-
of ECU
TSB Revision
Check chart No. Remedy
Repair the harness or
replace the RESUME
switch.
No. 5
Repair the harness or
replace the auto-cruise
vacuum pump and
actuator.
Replace the ECU,
Repair the vehicle-
speed sensor system,
'or replace the part.
Replace the ECU.
Repair the harness or
replace the bulb.
No. 9 Repair the harness or
replace the part.
Repair the harness or
No. 10
replace the part.