Honda Accord 2008 Manual page 593

07/11/02 09:13:33 61TA0000_110_0274
Electronic Throttle Control System
DTC Troubleshooting (cont'd)
13. Disconnect the throttle body 6P connector.
14. Check for continuity between ECM/PCM connector
terminals C20 and C21.
＊０２
Is there continuity?
YES
PCM C20 (TPSA line) and the C21 (TPSB line), then
go to step 17.
NO −
15. Turn the ignition switch to LOCK (0).
16. Replace the throttle body (see page 11-388).
17. Reconnect all connectors.
18. Turn the ignition switch to ON (II).
19. Reset the ECM/PCM with the HDS.
20. Do the ECM/PCM idle learn procedure (see page
11-343).
11-274
ECM/PCM CONNECTOR C (49P)
TPSA
(RED/BLK)
Terminal side of female terminals
−
Repair short in the wires between the ECM/
Go to step 15.
21. Check for Temporary DTCs or DTCs with the HDS.
Is DT C P2135 indicated?
YES − Check for poor connections or loose
terminals at the throttle body and the ECM/PCM,
then go to step 1.
−
NO Troubleshooting is complete. If any other
Temporary DTCs or DTCs are indicated, go to the
indicated DTC's troubleshooting.
22. Reconnect all connectors.
TPSB
(RED/BLU)
23. 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).
24. Check for Temporary DTCs or DTCs with the HDS.
Is DT C P2135 indicated?
YES − Check for poor connections or loose
terminals at the throttle body 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.