FUEL SYSTEM
VALVE>
Inspection of
Components
EGR SOLENOID
fuel injection
EGR solenoid
Component
side connector
Engine
control
module
01
OPERATION
l
The EGR solenoid is a duty-control type of sole-
noid valve; it performs its control function by
leaking the EGR valve-activation vacuum to the
throttle body A port.
TROUBLESHOOTING HINTS
If the diagnostic trouble code for EGR system
malfunction is output even though the results of
checking the EGR solenoid harness and the
INSPECTION
l
Battery power supply is supplied, by way of the
fuel injection, to the EGR solenoid.
When the engine control module switches OFF
the power transistor within the unit, current
stops flowing to the coil, and the EGR valve-ac-
tivation negative pressure leaks.
component itself are normal, check the EGR valve,
the vacuum hose piping, and the EGR passage for
clogging.
Using Scan tool
Function
No.
A c t u a t o r t e s t
Description
Inspection
conditions
Normal condition
switched from
switch: ON
Operating sound is
heard when driven.
TSB Revision
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