Honda Accord 2008 Manual page 567

07/11/02 09:12:41 61TA0000_110_0248
Electronic Throttle Control System
DTC Troubleshooting (cont'd)
11. Measure voltage between ECM/PCM connector
terminal C1 and body ground.
＊０３
Is there battery voltage?
YES
the ECM/PCM (C1) and the ETCS control relay, then
go to step 12.
NO −
12. Turn the ignition switch to LOCK (0).
13. Reconnect all connectors.
14. Turn the ignition switch to ON (II).
15. Reset the ECM/PCM with the HDS.
16. Do the ECM/PCM idle learn procedure (see page
11-343).
17. Check for Temporary DTCs or DTCs with the HDS.
Is DT C P1658 indicated?
YES
terminals at the ETCS control relay and the ECM/
PCM, then go to step 1.
−
NO
Temporary DTCs or DTCs are indicated, go to the
indicated DTC's troubleshooting.
11-248
ECM/PCM CONNECTOR C (49P)
IG1ETCS (YEL/GRN)
Terminal side of female terminals
− Repair short to power in the wire between
Go to step 18.
− Check for poor connections or loose
Troubleshooting is complete. If any other
18. Turn the ignition switch to LOCK (0).
19. Reconnect all connectors.
20. 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).
21. Check for Temporary DTCs or DTCs with the HDS.
Is DT C P1658 indicated?
YES − Check for poor connections or loose
terminals at the ETCS control relay and the ECM/
PCM. If the ECM/PCM was updated, substitute a
known-good ECM/PCM (see page 11-7), then
recheck. If the ECM/PCM was substituted, go to
step 1.
NO − If the ECM/PCM was updated, troubleshooting
is complete. If the ECM/PCM was substituted,
replace the original ECM/PCM (see page 11-232). If
any other Temporary DTCs or DTCs are indicated,
go to the indicated DTC's troubleshooting.