Mitsubishi 1989-1993 GALANT Service Manual page 298

FUEL SYSTEM (SOHC-16 VALVE>
OPERATION
TROUBLESHOOTING HINTS
INSPECTION
Using Scan Tool
Refer to
HARNESS INSPECTION
Harness side
connector
connector
2 1
Check for continuity of the ground
circuit.
Engine coolant temperature
l
sensor connector: Drsconnected
module harness
Check for open circuit or short-circuit
side connector
to ground, between engine coolant
temperature and engine control mod-
Engine coolant temperature
l
connector: Disconnected
Engine control module connec-
l
tor: Disconnected
Measure the Impressed voltage.
l
connector: Dlsconnected
Engine control module connec-
l
tor: Connected
Ignition switch. ON
l
SENSOR INSPECTION
Caution
Be careful not to touch the tool against the connector (resin
section) when removing and installing.
mostat housing.
TSB Revision
On-Vehicle Inspection of MFI
sensor
Replace
control
, I
moaure.