Power Sleering Prossure Switch Signal - Honda Civic Service Manual

ldle Control System
Power Steering Pressure (PSP) Switch Signal
('99 - 00 Models except Dl6y5 engine with M/T) (USAI
This signals the ECM/PCM when the power steering load is high.
Wire side of female terminals
PSP SWTTCH 2P CONNECTOR (qts6)
PSP SW (GRN)
JUMPER T---7
1
\
wlRE LJ-
2-l
GND IBLK)
Wi16 sid6 of temale terminals
ECM/PCM CONNEgTORS
Inspoction ot PSP switch signal.
Check for an op€n in the wire (PSP
SW linel:
1. Turn the ignition switch ON (ll).
2. Measure voltage between ECN4/
PCM connector terminals 426
and 820.
Check for .n open in tho wire IPSP
SW line):
1. Turn the ignition switch OFF.
2. Disconnoct the PSP switch 2P
connector.
3. Turn the ignition switch ON (ll).
4. At the wire side, connect the
PSP switch 2P connector ter-
m i n a l s N o . 1 a n d N o . 2 w i t h a
jumper wire.
5. Measure voltage between ECM/
PCNI connoctor terminals 426
and 820.
ls there lessthan 1.0 V?
-
Ropai. opgn in ths wire be-
tw.€n the ECM/PCM {A261
rnd th6 PSP switch.
-
Ropsir opon in BLK wi.o bo-
twoen tho PSP switch and
G 1 0 1 .
ls there less than 1.0 V?
Check the operation ot the PSP
sw;tch:
'1. Start
the engine
2. Turn steering wheelslowly.
3. Measure voltage between ECM/
PCM connector terminals 426
and 820.
ls there battery voltage?
PSP switch sign8l i3 OX.
1 1-2 1 4
( T o p a g e 1 1 - 2 1 5 )