Subaru IMPREZA 2002 Service Manual page 237

a
DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR
ABS (DIAGNOSTICS)
Step
5
CHECK SOURCES
OF
SIGNAL NOISE.
Check
Are noise sources (such as an
antenna) installed near the
sensor harness?
6 CHECK SHIELD CIRCUIT.
2)Measure the resistance between shield con-
nector and chassis ground.
Connector & terminal
DTC 26 / (6200) No. 1 1
-
Chassis
ground:
DTC 28 / (6200) No. 3
-
Chassis ground
NOTE:
For the DTC 22 and 24:
Go to step 17.
I7 CHECK ABSCM&H/U.
1)Connect all connectors.
2)Erase the memory.
3)Perform the inspection mode.
4)Read out the diagnostic trouble code.
I s
the resistance less than 0.5
1 8
CHECK ANY OTHER DIAGNOSTIC TROU-
BLE CODES APPEARANCE.
1 )Connect all connectors.
Is the same diagnostic trouble
code as in the current diagno-
sis still being output?
Q?
Are other diagnostic trouble
codes being output?
I
Yes
nstall the noise
sources apart from
he sensor har-
less.
30 to step 17.
3eplace the
4BSCM&H/U.
:Ref. to ABS-7,
4BS Control Mod-
Jle and Hydraulic
Zontrol Unit
:ABSCM&H/U).>
Proceed with the
jiagnosis corre-
sponding to the
%agnostic trouble
:ode.
No
; o to step 16.
3epair the shield
iarness.
20 to step 18.
4 temporary noise
nterference.
ABS-51