Checking The Set Switch Circuit - Mitsubishi 1989-1993 GALANT Service Manual

AUTO-CRUISE CONTROL SYSTEM - Troubleshooting

2. CHECKING THE SET SWITCH CIRCUIT

Description of operation
SET switch is switched ON (at the
W h e n t h e
vehicle speed desired to be maintained, and with
the main switch of the cruise-control switches ON)
that vehicle speed is maintained as a constant
speed.
Furthermore, the constant speed is gradually re-
Troubleshooting hint
ECU terminal voltage
Terminal
Signal
No.
5 SET
switch
ECU
SET switch is switched ON
When the
When the SET switch is switched OFF
TSB Revision
switch is pressed and held while the vehicle is
set constant speed, and,
traveling at the previously
when the SET switch is released, tne vehicle then
maintains that newly set constant speed
speed at which the SET switch was released).
Current flows to the control unit, the cruise control
switch ("SET"), and to ground.
Conditions
( t h e
Terminal voltage
ov