Honda ACCORD HYBRID 2005 Service Manual page 266

Fuel and Emissions Systems
S y s t e m D e s c r i p t i o n ( c o n t ' d )
PCM Inputs and Outputs at Connector A (31P)
1
PG2
2
PG1
3
LG1
4
IGP
5
IAT2
6
AFSHTC
B2
7
AFSHTC
B1
8
S 0 2 S
HTCB2
9
S 0 2 S
HTCB1
10
VBSOL
11
MAP
12
VCC1
13
POIL
14
ECT1
15
IGPLS6
16
IGPLS5
17
IGPLS4
18
IGPLS3
19
IGPLS2
20
IGPLS1
21
INJ1
23
SG1
24
EGRP
25
SEFD
26
SEDF
27
I N J 6
28
INJ5
29
INJ4
30
INJ3
31
I N J 2
Wire side of f e m a l e t e r m i n a l s
NOTE: Standard battery voltage is 12 V.
Terminal
number
Wire color Terminal name Description Signal
1
BLK PG2 (POWER GROUND) Ground circuit for PCM
circuit
Less than 1.0 V at all times
2 BLK PG1 (POWER GROUND) Ground circuit for PCM
circuit
Less than 1.0 V at all times
3
BRN/YEL
LG1 (LOGIC GROUND) Ground circuit for PCM
circuit
Less than 1.0 V at all times
4 YEL/BLK IGP (POWER SOURCE) Power source for PCM
circuit
With ignition switch ON (II): battery voltage
With ignition switch OFF: about 0 V
5
RED/YEL
IAT2 (INTAKE AIR
TEMPERATURE (IAT)
SENSOR 2)
Detects IAT sensor 2
signal
With ignition switch ON (II): about 0.1—4.8 V
(depending on intake air temperature)
6 GRN/WHT AFSHTCB2 (AIR FUEL RATIO
(A/F) SENSOR HEATER
CONTROL BANK 2)
Drives front A/F sensor
heater (Bank 2, sensor 1)
With ignition switch ON (II): battery voltage
With fully warmed up engine running: about 0 V
or pulses
7 BLK/WHT AFSHTCB1 (AIR FUEL RATIO
(A/F) SENSOR HEATER
CONTROL BANK 1)
Drives rear A/F sensor
heater (Bank 1, sensor 1)
With ignition switch ON (II): battery voltage
With fully warmed up engine running: about 0 V
or pulses
8 GRN/RED S02SHTCB2 (SECONDARY
HEATED OXYGEN SENSOR
(SECONDARY H02S) HEATER
CONTROL BANK 2)
Drives front secondary
H02S heater (Bank 2,
sensor 2)
With ignition switch ON (II): battery voltage
With fully warmed up engine running: duty
controlled
9
BLK/WHT S02SHTCB1 (SECONDARY
HEATED OXYGEN SENSOR
(SECONDARY H02S) HEATER
CONTROL BANK 1)
Drives rear secondary
H02S heater (Bank 1,
sensor 2)
With ignition switch ON (II): battery voltage
With fully warmed up engine running: duty
controlled
10 BLK/YEL VBSOL (POWER SOURCE
FOR SOLENOID VALVES)
Power source for
solenoid valves
With ignition switch ON (II): battery voltage
With ignition switch OFF: 0 V
11 GRN/RED MAP (MANIFOLD ABSOLUTE
PRESSURE (MAP) SENSOR)
Detects MAP sensor
signal
With ignition switch ON (II): about 3 V
At idle: about 1.0 V (depending on engine speed)
12 YEL/RED VCC1 (SENSOR VOLTAGE) Provides sensor voltage With ignition switch ON (II): about 5 V
With ignition switch OFF: 0 V
13 BLU/YEL POIL (ENGINE OIL PRESSURE
SENSOR)
Detects engine oil
pressure sensor signal
With ignition switch ON (II): about 0.8—1.6 V
(depending on engine oil pressure)
14
RED/WHT ECT1 (ENGINE COOLANT
TEMPERATURE (ECT)
SENSOR 1)
Detects ECT sensor 1
signal
With ignition switch ON (II): about 0.1—4.8 V
(depending on engine coolant temperature)
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