Electronic Control Unit (Ecu) Signal Circuit Check - Mitsubishi 1989-1993 GALANT Service Manual

AUTO-CRUISE CONTROL SYSTEM
connector terminals
1
2
3
and actuator (clutch)
5 1 Power supply (MAIN)
6
None
7 1 P o w e r s u p p l y (IGz)
9 Accelerator pedal
switch
11 SET switch
12 OD switch
13 RESUME switch
15 1 Stop light switch load ~ V o l t a g e
side
16 j Ground
ELECTRONIC CONTROL UNIT (ECU) SIGNAL
CHECK <Electrical type: Up to 1990 models>
Disconnect the connector of the ECU, and then check at the
body side
Tester con-
ment item
Resistance
1 - "'2
Voltage
Voltage
V o l t a g e
Voltage
Voltage
Continuity 1 l-Ground ' SET switch ON (Press)
Voltage
Continuity
Continuity
TSB Revision
wiring harness according to the chart below.
Check conditions
Actuator selector
(Fully closed position)
ON
(Accelerator pedal free)
position, slowly turn the speedom- changes/ ca-
eter cable.
SET switch OFF (Release)
OD SW OFF position ~ OV
I-
At all times
CIRCUIT
MAIN SW: Main switch
OD SMI: Overdrive switch
Standard
Approx. 120
Battery positive
Battery positive
voltage
Battery positive
voltage
Battery positive
voltage
Battery positive
voltage
4 voltage
Continuity
continuity
No
Battery positive
voltage
Continuity
No continuity
! -
Battery positive
voltage