Subaru IMPREZA 2002 Service Manual page 563

Is
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
~ ~
Check
Does the Subaru Select Moni-
tor or OBD-ll general scan tool
indicate DTC P0720?
Does the speedometer operate
Step
CHECK DTC PO720 ON DISPLAY.
Yes
Check front vehi-
cle speed sensor
signal circuit.
<Ref. to AT-57,
DTC 33 FRONT
VEHICLE SPEED
SENSOR, Diag-
nostic Procedure
with Diagnostic
Trouble Code
(DTC).>
Go to step 4.
I
CHECK SPEEDOMETER OPERATION IN
COMBINATION METER.
I
CHECK HARNESS BETWEEN ECM AND
COMBINATION METER CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from combination
meter.
3)Measure the resistance between ECM and
combination meter.
Connector & terminal
(8135) NO. 24
-
(i10) NO. 2:
Is the resistance less than 10
R?
tepair poor con-
x t in ECM con-
lector.
No
i o to step
3 .
:heck speedome-
er and vehicle
;peed sensor.
:Ref. to IDI-13,
;peedometer.>
ind <Ref. to AT-32,
?ant Vehicle
;peed Sensor.>
ind <Ref. to AT-35,
3ear Vehicle
;peed Sensor.>
ind <Ref. to AT-36,
brque Converter
urbine Speed
;ensor.>
?epair harness
ind connector.
JOTE:
n this case, repai
he following:
Open circuit in
iarness between
X M and combi-
lation meter con-
lector
Poor contact in
ICM connector
'
Poor contact in
:ombination metei
Zonnector
I
Poor contact in
:oupling connect0
B37)
EN(S0HC)-239