Honda Civic Service Manual page 1227

Troubleshooting
Main Relay (cont'd)
(From page 19'71)
PCOM
(GRN/WHTI
scoM
(BLK/WHT}
Check tor a short to powor in the
PCOM, SCOM circuit:
1. Turn the ignition switch ON
r).
2. Measure the voltage between
body ground and ABS control
unit 26P connector terminals
N o . l a n d N o . 2 i n d i v i d u a l l y .
. Repair 3hoit to power in ihe
rcOM circuil wire bgtween the
ABS control unit end unde.-
hood ABS fuse/relay box.
. Repair sho
to powor in tha
PCOM oJ SCOM circuit wiro
betwoen the ABS control unit
and modulator unit.
' Repl.co the modul.tor unit.
lshort to Dowcr iGido the unit)
Replace the ABS control unit.
V o l t a g e
19-72