Honda Civic 2002-2003 Service Manual page 289

PGM-FI System
OTC Troubleshooting (cont'd)
14. Measure voltage between ECM connector terminal
E7 and body ground.
ECM CONNECTOR E (31P)
MRlY
(REO/YELl
1 2 3 4 5 6 7
141516 18
22 23 24 26 ",27=-==,,-,
Wire side of female terminals
Is there battery voltage?
YES-Go to step 15.
NO-Update the ECM if it does not have the latest
software, or substitute a known-good ECM, then
recheck (see page 11-61. If the symptom/indication
goes away with a known-good ECM, replace the
original ECM .•
15. Disconnect ECM connector A (31 PI.
16. Turn the ignition switch ON (III.
17. Measure voltage between body ground and ECM
connector terminals A3 and A2 individually.
ECM CONNECTOR A (31 PI
IGP2
(VEl/BlK)
10 11 12
IGP'
(VEl/BlKI
222324 2526
Wire side of female terminals
Is there battery voltage?
YES-Go to step 18.
NO-Update the ECM if it does not have the latest
software, or substitute a known-good ECM, then
recheck (see page 11-61. If the symptom/indication
goes away with a known-good ECM, replace the
original ECM/PCM .•
11-82
18. Remove the glove box (see page 20-631.
19. Remove the PGM-FI main relay 1 (AI.
A
--
20. Measure voltage between body ground and ECM
connector terminals A3 and A2 individually.
ECM CONNECTOR A 131PI
IGP2
IVEL/BLKI
':L
IGPI
IVEL/BLKI
Wire side of female terminals
Is there battery voltage?
YES-Repair shortto power in the wire between
the ECM (A2.A31 and the PGM-FI main relay 1 .•
NO- Replace the PGM-FI main relay 1 .•
•
•