Mitsubishi 1989-1993 GALANT Service Manual page 435

FUEL SYSTEM <DOHC> -
HEATED OXYGEN SENSOR <From 1991 model-Non-Turbo>
sensor connector
5
14 15
OPERATION
TROUBLESHOOTING HINTS
INSPECTION-Using Scan tool
Refer to P.1.3-290.
HARNESS INSPECTION
connector
injection relay
Engine control module
16
Measure the power supply voltage of
the heated oxygen sensor.
Connector: Disconnected
Ignition switch:
TSB Revision
On-Vehicle Inspection of MFI Components
Engine control module connector
O N
Heated oxygen
sensor
connector