DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
CHECK HARNESS BETWEEN KNOCK SEN-
SOR AND ECM CONNECTOR.
1)Turn the ignition switch
to
OFF.
2)Disconnect the connector from ECM.
3)Measure the resistance between ECM har-
ness connector and chassis ground.
Connector
&
terminal
(8135)
No.
4
-
Chassis ground:
!
CHECK KNOCK SENSOR.
1)Disconnect the connector from knock sensor
2)Measure the resistance between knock sen-
sor
connector terminal and engine ground.
Terminal
No.
2
-
€ngine ground:
I
CHECK CONDITION
OF
KNOCK SENSOR
INSTALLATION.
Check
s
the resistance more than
700
kR?
s
the resistance more than
700
kR?
Is
the knock sensor installation
solt
tightened securely?
~ ~~
Yes
20
to step
2.
30
to
step
3.
3eplace the knock
sensor. <Ref.
to
W(D0HC
TURBO)-32,
hock Sensor.>
No
Repair harness
and connector.
NOTE:
In this case, repaii
the following:
Open circuit
in
harness between
knock sensor and
ECM connector
Poor contact in
knock sensor con-
nector
Poor contact in
coupling connectoi
Repair harness
and connector.
NOTE:
In
this case, repai
the following:
Open circuit in
harness between
knock sensor and
ECM connector
Poor contact
in
knock sensor con-
nector
Poor contact in
coupling connect0
Tighten knock sen
sor installation
bolt
securely.
EN(D0HC TURBO)-I83
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