FUEL SYSTEM <DOHC>
On-Vehicle Inspection of
Components
COMPONENTS INSPECTION
Using Scan Tool
Refer to
POWER SUPPLY AND IGNITION
injection relay
‘OWE
Ignition switch
Component
side
63 66
,
Harness
side connector
OPERATION
l
While the ignition switch is ON, battery power
supply is supplied to the engine control module,
injectors, volume air flow sensor, etc.
l
When the ignition switch is switched ON,
rent flows from the ignition switch, via the
fuel injection relay coil to ground.
INSPECTION
Using Scan tool
As
a result,
the
fuel injection relay
switch is switched ON, and power is supplied,
by way of the
fuel injection relay
switch, from the battery to the engine control
module.
Function
Data reading
Item No.
Data display
Check conditions
Standard value
16
Engine control module power-
Ignition switch:
O N
Battery positive
voltage
supply voltage
TSB Revision
Summary of Contents for 1989 Galant
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