Honda Accord 2008 Manual page 350

07/11/02 09:00:42 61TA0000_110_0031
ECM/PCM Inputs and Outputs at Connector C ( ) (49P)
＊１６
NOTE: Standard battery voltage is about 12 V.
Terminal
number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
20
21
Wire color Terminal name
YEL/GRN IG1ETCS (IGNITION
SIGNAL ETCS)
BLK PGMETCS (POWER
GROUND ETCS)
GRN/YEL ETCSM − (THROTTLE
−
ACTUATOR SIDE)
BLU/RED ETCSM ＋ (THROTTLE
ACTUATOR ＋ SIDE)
BRN INJ1 (No. 1 INJECTOR)
RED INJ2 (No. 2 INJECTOR)
BLU INJ3 (No. 3 INJECTOR)
YEL INJ4 (No. 4 INJECTOR)
GRN AFSHTC (AIR FUEL RATIO
(A/F) SENSOR HEATER
CONTROL (SENSOR 1))
BLK/RED IG1 (IGNITION SIGNAL)
GRN/RED MAP (MANIFOLD
ABSOLUTE PRESSURE
(MAP) SENSOR)
BLU VCC3 (SENSOR VOLTAGE)
YEL/RED VCC1 (SENSOR VOLTAGE)
GRN/WHT SG1 (SENSOR GROUND)
YEL/GRN IGPLS1 (No. 1 IGNITION
COIL PULSE)
BLU/RED IGPLS2 (No. 2 IGNITION
COIL PULSE)
WHT/BLU IGPLS3 (No. 3 IGNITION
COIL PULSE)
BRN IGPLS4 (No. 4 IGNITION
COIL PULSE)
RED/BLK TPSA (THROTTLE
POSITION (TP) SENSOR A)
RED/BLU TPSB (THROTTLE
POSITION (TP) SENSOR B)
○
Terminal side of female terminals
Description
Detects ignition signal With ignition switch ON (II): battery voltage
Ground circuit for ECM/ Less than 0.5 V at all times
PCM
Ground for throttle actuator With ignition switch ON (II): about 0 V
Drives throttle actuator With ignition switch ON (II): about 0 V
Drives No. 1 injector With ignition switch ON (II): battery voltage
Drives No. 2 injector At idle: duty controlled
Drives No. 3 injector
Drives No. 4 injector
Drives A/F sensor heater With ignition switch ON (II): battery voltage
(sensor 1) With fully warmed up engine running: pulses
Detects ignition signal With ignition switch ON (II): battery voltage
Detects MAP sensor signal With ignition switch ON (II): about 3.0 V
At idle: about 1.0 V (depending on engine speed)
Provides sensor reference With ignition switch ON (II): about 5.0 V
voltage
Provides sensor reference With ignition switch ON (II): about 5.0 V
voltage
Sensor ground Less than 0.5 V at all times
Drives No. 1 ignition coil With ignition switch ON (II): about 0 V
With engine running: pulses
Drives No. 2 ignition coil
Drives No. 3 ignition coil
Drives No. 4 ignition coil
Detects TP sensor A signal With throttle fully open: about 3.9 V
With throttle fully closed: about 0.8 V
Detects TP sensor B signal With throttle fully open: about 4.1 V
With throttle fully closed: about 1.7 V
Signal
(cont'd)
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