Honda Accord 2008 Manual page 533

07/11/02 09:10:59 61TA0000_110_0214
PGM-FI System
DLC Circuit Troubleshooting (cont'd)
41. While disconnecting each of the parts or
connectors below, one at a time, check for
continuity between PGM-FI main relay 1 4P
connector terminal No. 2 and body ground.
• PGM-FI main relay 2 (FUEL PUMP)
• ECM/PCM connector A (49P)
• Each injector 2P connector
• Camshaft position (CMP) sensor B 3P connector
• Crankshaft position (CKP) sensor 3P connector
• MAF/IAT sensor 5P connector
• Electronic throttle control system (ETCS) control
relay
＊１１
Does continuity go away when one of the above
parts or connectors is disconnected?
YES
ground go away when disconnected. If the part is
the ECM/PCM, update the ECM/PCM if it does not
have the latest software (see page 11-231), or
substitute a known-good ECM/PCM (see page 11-7),
then recheck. If the symptom/indication goes away
with a known-good ECM/PCM, replace the original
ECM/PCM (see page 11-232). Also replace the
No. 17 FI MAIN (15 A) fuse.
NO −
11-214
PGM-FI MAIN RELAY 1 4P CONNECTOR
IGP
Terminal side of female terminals
− Replace the part that made the short to body
Go to step 42.
42. Disconnect these parts or connectors:
• PGM-FI main relay 2 (FUEL PUMP)
• ECM/PCM connector A (49P)
• Injectors
• Camshaft position (CMP) sensor B
• MAF/IAT sensor 5P connector
• Crankshaft position (CKP) sensor
• Electronic throttle control system (ETCS) control
relay
43. Check for continuity between PGM-FI main relay 1
4P connector terminal No. 2 and body ground.
PGM-FI MAIN RELAY 1 4P CONNECTOR
IGP
Terminal side of female terminals
Is there continuity?
YES − Repair short in the wire between PGM-FI
main relay 1 and each part. Also replace the No. 17
FI MAIN (15 A) fuse.
NO − Replace PGM-FI main relay 1. Also replace the
No. 17 FI MAIN (15 A) fuse.
44. Inspect the No. 9 FUEL PUMP (20 A) fuse in the
driver's under-dash fuse/relay box.
Is the f use OK ?
YES − Go to step 56.
−
NO Go to step 45.
45. Remove the blown No. 9 FUEL PUMP (20 A) fuse in
the driver's under-dash fuse/relay box.
46. Jump the SCS line with the HDS.
47. Disconnect ECM/PCM connector C (49P).
＊１２