Subaru 1997-1998 Impreza Service Manual page 396

8X7
1 ) Turn Ignit io n sWitch to OFF.
2) Discon nect connector (ABS1 ) from hydraulic u nit.
3) Measure resistance between hydra u t i c unit and motor
retay i nstalling portion.
Connector
(ASS1) No. 1 - Motor relay installing portion No. 30:
<§: H �C3>
@)
8X8
Measure resistance between hyd raulic u n i t and c hassis
ground.
Connector
(ASS1) No. 1 - Chassis ground:
('is)
84M0893A
@)
��D
8X9
1 )
2) Measure voltage between ABSCM con nector and chas­
sis g round.
Connector
(ASS1) No. 1
84M0793A
@)
B RAKES
8. Diagnostics Chart with Trouble Code by ABS Warning
CHECK OPEN CIRCUIT IN CONTACT POINT
CIRCUIT OF RELAY BOX.
&
terminal
: Is the resistance less than 0.5 n?
8X8.
Go to step
:
Reptace relay box.
CHECK GROUND SHORT IN CONTACT
POINT CIRCUIT OF RELAY BOX.
&
terminal
: Is the resistance more than 1 Mn?
8X9.
Go to step
Replace relay box. Check fuse No. 1 9.
CHECK BATTERY SHORT IN CONTACT
POINT CIRCUIT OF RELAY BOX.
Disconnect connector from ABSCM.
&
-
terminal
( + )
Chassis ground (-):
: Is the voltage less than 1 V?
8X10.
Go to step
Replace relay box.
1 07
[T8X9] 4-4
Light