Honda Civic 2002-2003 Service Manual page 283

PGM-FI System
DTC Troubleshooting (cont'd)
45. Measure voltage between injector 2P connector
terminal No.1 and body ground.
INJECTOR 2P CONNECTOR
~
IGP (VEL/BLK) ~
Wire side of female terminals
/s there battery voltage?
YES~Go
to step 46.
NO~Repair
open in the wire between the injector
and the PGM-FI main relay 1 .•
46. Turn the ignition switch OFF.
47. Check for continuity between body ground and
ECM connector terminallsee table).
ECM CONNECTOR B (24P)
INJ3
INJ1(BRNI
INJ2
IBLU)
IRED)
6
7
15
17 18
23
.Q
.Q .Q .Q
= =
= =
Wire side of female terminals
PROBLEM
DTC
!
ECM WIRE
CYLINDER : TERMINAL COLOR
No.1 P0301 I B5
BRN
No.2 P0302 B4 RED
No.3 P0303 B3 BLU
No.4 P0304 B2
YEL
Is there continuity?
YES~Repair short in the wire between the ECM
and the injector .•
NO~Go
to step 48.
11-76
48. Connect injector 2P connector terminal No.2 to
body ground with a jumper wire Isee table).
PROBLEM
CYLINDER
No.1
No.2
No.3
No.4
INJECTOR 2P CONNECTOR
'
2
INJ
JUMPER
WIRE
Wire side offemale terminals
DTC WIRE COLOR
P0301 BRN
P0302 RED
P0303 BLU
P0304 YEL
49. Check for continuity between body ground and
ECM connector terminal (see table).
ECM CONNECTOR B 124P)
INJ3
INJ1IBRN)
INJ2
IBLUI
IREDI
6 7
15
23
.Q
.Q .Q .Q
= =
= =
Wire side of female terminals
PROBLEM DTC
I
ECM ,
WIRE
CYLINDER
!
TERMINAL I
COLOR
No.1
P0301 B5 BRN
No.2 P0302 B4 RED
No.3 P0303 B3
BLU
No.4 P0304 B2
YEL
/s there continuity?
YES~Replace the injector, then recheck .•
NO~Repair
open in the wire between the ECM and
the injector .•