Honda Civic 2002-2003 Service Manual page 282

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32. Measure voltage between body ground and ECM
connector terminal (see table).
ECM CONNECTOR B (24PI
INJ3
(BLUI
= =
17 18
INJl (BRNI
5 6 7
13 15
21 23
Wire side of female terminals
PROBLEM DTC ECM
CYLINDER TERMINAL
No.1 P0301 B5
No.2
P0302
B4
No.3 P0303 B3
No.4 P0304 B2
fs there battery voftage?
YES~Go
to step 33.
NO~Go
to step 41.
INJ2
(REDI
= =
WIRE
COLOR
BRN
RED
BLU
VEL
33. Turn the ignition switch OFF, and remove the
engine cover.
34. Disconnect the injector 2P connector from the
problem cylinder.
35. Measure the resistance between injector 2P
connector terminals No.1 and No.2.
INJECTOR 2P CONNECTOR
,~
Terminal side of male terminals
fs there 10 12 ~ 1312 ?
YES~Go to step 36 .
NO~Replace the injector (see page 11-111) .•
36. Exchange the injector from the problem cylinder
with one from another cylinder.
37. Lelthe engine idle for 2 minutes.
38. Test-drive the vehicle for several minutes in the
range of the freeze data or under various
conditions ifthere was no freeze data.
39. Check for a DTC or Temporary DTC with the scan
tool.
fs DTC
or
Temporary DTC P0301. P0302, P0303,
or P0304 indicated?
YES~Go to step 40.
NO-Intermittent misfire due to injector
malfunction, etc. Make sure the injector
connections are secure. Check for poor connections
or loose terminals at the injector connector..
40. Determine which cylinder(s) had the misfire.
Does the misfire occur in the cylinder where the
injector was exchanged?
YES -
Replace the faulty injector .•
NO
Update the ECM if it does not have the latest
software, or substitute a known-good ECM, then
recheck (see page 11-6). If the symptom/indication
goes away with a known-good ECM, replace the
original ECM .•
41. Turn the ignition switch OFF.
42. Remove the engine cover.
43. Disconnect the injector 2P connector from the
problem cylinder.
44. Turn the ignition switch ON (II).
(conl'd)
11-75