Honda Civic Service Manual page 482

ldle Control System
lgy"t9!"_"ring Pressure (PSPI Switch Signal
('96 - 98 Models, '99 - 00 DlGy5 engine witn fU/f) (USAI
This signals the ECM/ PCN4 when the power steering load is high.
ECM/PCM CONNECTORS
PSP SWITCH 2P CONNECTOR
PSP SW IGRNI
JUMPER l--L
I I
w f R E - 2 /
GND (BLKI
Wire side ol female terminais
Inspection o{ PSP switch signal.
Check for an opon in the wire {PSP
SW linelr
1. Turn the ignition switch ON (ll).
2 . M e a s u r e v o l t a g e b e t w e e n
E C M / P C M c o n n e c r o r t e r m i -
n a l s A 9 a n d C 1 6 .
Check lor an open in the wire (PSP
SW line):
1. Turn the ignition switch OFF.
2. Disconnecl the PSP switch 2p
3. Turn the ignition switch ON (ll).
4. At the harness side, connect
the PSP switch 2P connector
t e r m i n a l s N o . l a n d N o . 2
with a jumper wire.
5 . M e a s u r e v o l t a g e b e t w e e n
ECM/PCM connector terminals
Ag and C16.
ls there lessthan 1.0 V?
-
R e p a i r o p e n i n t h e w i r o
between the ECM/PCM lc16l
and the PSP switch.
-
R e p a i r o p e n i n B L K w i r e
betwoen the PSP switch and
G 1 0 1 .
ls there less than 1.0 V?
Check the operation of the PSP
switch:
'1. Start
the engine
2 . T u r n s t e e r i n g w h e e l t o f u l l
3 - M e a s u r e v o l t a g e b e t w e e n
ECM/PCM connector terminals
A9 and C16.
ls there battery voltage?
PSP switch signel is OK.
Wire side oI temale terminals
11 - 2 1 2
( T o p a g e 1 1 ' 2 ' 1 3 )