Engine Control Module T€Rminal Arrangement - Acura Integra 1998 Service Manual

Engine Control Module Terminal Arrangement
ECM CONNECTOR A I32P}
ECM CONNECTOR A I32PI
* 1 : U S A
* 2 : 8 1 8 C 1 e n g i n e
*3:A,/T
* 4 : 8 1 8 C 1 , 8 1 8 C 5 e n g i n e s
f e m a l e t e r m i n a l s
NOTEr Standard battery voltage i s 1 2 V .
{cont'di
L G 2
2A
T erminal
Wire
Terminal name
Description
S i g n a l
YEL
lNJ4 (No. 4 FUEL INJECTOR)
Drives No. 4 fuel iniector.
W i t h e n g i n e r u n n i n g : p u l s e s
2
B L U
l N J 3 ( N o . 3 F U E L I N J E C T O R ) Drives No. 3 fuel injector.
3 RED l N J 2 ( N o . 2 F U E L I N J E C T O B )
D r i v e s N o . 2 f u e l i n j e c t o r .
BRN
lNJl (No. 1 FUEL INJECTOR)
D r i v e s N o . l I u e l i n i e c t o r .
5 GRN/RED
S 02SHTC (SECONDARY
HEATED OXYGEN SENSOR
HEATER CONTROL)
Drives secondary heated oxygen
sensor heater,
With ignition switch ON (ll)i battery volrage
With fully warmed up engine runningi
duty controlled
6
ORN/BLK
P O2SHTC {PRIMARY HEAIED
OXYGEN SENSOB HEAIER
CONTFOL)
Draves primary heated oxygen
sensor heater,
With ignition swirch ON (ll): battery voltage
With lully warmed up engine running:
duty controlled
8 4
G RNI/EL
VTS (VTEC
SOLENOID VALVE)
Drives VTEC solenoid valve.
With engine at low rpm: 0 V
With engine at high rpm: battery voltage
I
BRN/BLK L G 1 ( L O G I C G R O U N D )
Ground for the ECM control circuit. Less than 1.0 V at alltimes
1 0 BLK PGl (POWER GROUND)
Ground for the EC[, power circuit.
L e s s t h a n 1 . 0 V a t a l l t i m e s
't'l YEUBLK IGPl {POWER SOURCE)
Power source for the ECM
controlcircuit.
W i t h i g n i t i o n s w i t c h O N 1 l l ) : b a t t e r y v o l t a g e
W i t h i g n i t i o n s w i t c h O F F | 0 V
12 BLI(8LU
IACV
(IDLE AIR CONTROL VALVE}
Drives IACV.
With engine running: about 6 V 10 V
(depending on engine speed)
RED
PCS (EVAP PURGE CONTROL
SOLENOID VALVE)
Drives EVAP purge control
solenoid valve.
Wilh engane running, engine coolant above
154"F (68'C): duty controlled
G R N / B L U
FLR (FUEL PUMP RELAY)
Drives fuel pump relay.
0 V for two seconds after turning ignition
switch ON (ll), then battery voltage
1 7
B LVBED
ACC (fuC CLUTCH RELAY)
Drives A,/C clulch relay.
With compressor ON: 0 V
With compressor OFFt baftery voltage
1 8 GRN/ORN
MIL (I\4ALFUNCTION
INDICATOR LAMPi
D r i v e s M l L .
With MIL turned ON:0 V
Wjth MIL turned OFF: battery vottage
1 9 * , WHT/GRN
ALTC (ALTERNATOR
CONTROL)
Sends alternator control signal,
With fully warmed up engine runningl
battery voltage
During driving with small electrical load: 0 V
20
YEUGRN
ICM (IGNITION CONTROL
M O D U L E )
Sends ignition pulse.
With ignition switch ON (ll): battery voltage
With engine running: about'10 V
(depending on engine speed)
22
BRN/BLK LG2 (LOGIC GROUND)
Ground forthe ECM controlcifcuit. Less than 1.0 V at all times
8 L K
PG2 (POWEfl GROUND)
Ground for the ECM power circuit.
L e s s t h a n 1 . 0 V a t a l l t i m e s
24
YEUELK
IGP2 (POWER SOURCE)
Power source for the ECM
controlcircuit,
W i t h i g n i t i o n s w i t c h O N { l l i : b a t t e r y v o l t a g e
W i t h i g n i t i o n s w i t c h O F F : 0 V
25*3
WHT/BLK VREF
(REFERENCE
VOLTAGE)
P r o v i d e s r e f e r e n c e v o l t a g e t o
o t h e r c o n t r o l u n i t s ,
With ignition swirch ON (ll): about 5 V
Wath ignition switch OFF: 0 V
26. '
PNK/8LU
IAB SOL (INTAKE AIR BYPASS
CONTROL SOLENOID VALVE)
D r i v e s I A B c o n l r o l s o l e n o i d
W i t h e n g r n e r u n n i n g , e n g r a e s p e e d b e t o w
5,750 rpm: battery voltage
W i t h e n g i n e r u n n i n g , e n g i n e s p e e d a b o v e
5 , 7 5 0 r p m : 0 V
2 7 * I
GRN
FANC (BADIATOR FAN
CONTROL)
Drives radiator fan relay.
With radiator {an running: 0 V
With radiator Ian stopped: battery voltage
2A BLU
2WBS (EVAP BYPASS
SOLENOID VALVE)
Drives EVAP bypass solenoid
W i t h i g n i t i o n s w i t c h O N ( l l ) : b a t t e r y v o t t a g e
29 LT GRN
VSV (EVAP CONlROL
CANISTER VENT SHUT VAVLE)
D r i v e s E V A P c o n t r o l c a n i s t e r v e n t
s h u t v a l v e .
W i l h i g n i l i o n s w i t c h O N l l l ) : b a n e r y v o t r a s c
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