Honda Civic Service Manual page 227

Fuel and Emissions Systems
System Descriptions {cont'd)
ECM Inputs and Outputs at Connector A (31P)
\ . i l
Wire side of female terminals
\.
1
AFS]TC
2
G P 2
3
I G P l
4
PG2
5
PG.1
6
AFS+
1
CKP
I
KS
1 0
SG2
1 1
sG1
1 2
IACV
' 1 5
TPS
1 6
AFS_
1 8
V S S
1 9
IVAP
20
vcc2
21
vccl
22
AFS
HTC+
23
LG2
25
Ct\.4PA
26
CMPB
(rDc)
27
IGPLS4
28
IGPLS3
29
IGPLS2
30
IGPLS,I
NOTE: Standard battery voltage is 12 V.
Jorminal
number
Wirecolor
[€rminal namo Description
S i g n a l
1 9
GRN/RED MAP (MANIFOLD
ABSOLUTE PRESSURE
SENSOR)
Detects MAP sensor signal W i t h i g n i t i o n s w i t c h O N ( l l ) : a b o u t 3 V
A t i d l e : a b o u t 1 . 0 V ( d e p e n d i n g o n e n g i n e s p e e d )
2 0
YEUBLU
VCC2 (SENSOR VOLTAGE)
P r o v i d e s s e n s o r v o l t a g e
With ignition switch ON {ll): about 5 V
With ionition switch OFF: about0V
21
YEURED
VCC] (SENSOB VOLTAGE) Provides sensor voltage
With ignition switch ON {ll): about 5 V
With ionition switch OFF: about0V
22
AFSHTC - (AIR FUEL
RATIO (A"iFiSENSOR
HEATER CONTROL + SIDE)
Detects a,/F sensor heater
voltage
W i t h i g n ; t i o n s w i t c h O N l l l ) : b a n e r y v o l t a g e
23 BRN?ryE L
LG2 (LOGIC GROUND
round for the ECM circu
Lessthan 1.0 V at alltimes
24
BRN?ryE L
1 ( L
round for the ECM circu
L e s s t h a n
' 1 . 0
V a t a l l t i m e s
25
B LU,^/VHT
CMP A (CAMSHAFT
POSITION SENSOR A)
D e t e c t s C M P s e n s o r A
s t o n a l
With engine running: pulses
26 GRN CMP B CAMSHAFT
POSITION (CMP)SENSOB
B (TDC (TOP DEAD CENTER
SENSORi)
Detects CMP sensor 8 (TDc
sensor)
With engine running: pulses
27 BRN I G P L S 4 { N o . 4 I G N I T I O N
C O I L P U L S E )
D r i v e s N o , 4 i g n i t i o n c o i
With ignition switch ON (ll)r about 0 v
With engine running: pulses
2 8 WHT/BLU I G P L S 3 { N o . 3 I G N I T I O N
C O I L P U L S E )
O r i v e s N o . 3 r g n i t i o n c o i
29
BLU/RED l G P L S 2 l N o . 2 I G N I T I O N
COIL PTJLSE)
D r i v e s N o . 2 i g n i t i o n c o i l
30 YEUGRN
IGPLSI (No. 1 IGNITION
c o P l l t s F )
Drives No. I ignition coil
11-20
\.
a
a