Honda Accord 2008 Manual page 572

07/11/02 09:12:43 61TA0000_110_0253
DTC P1683: Throttle Valve Default Position
Spring Performance Problem
Do not insert your fingers into the installed throttle
body when you turn the ignition switch to ON (II) or
while the ignition switch is ON (II). If you do, you
will seriously injure your fingers if the throttle valve
is activated.
NOTE: Before you troubleshoot, record all freeze data
and any on-board snapshot, and review the general
troubleshooting information (see page 11-3).
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Start the engine. Hold the engine speed at
3,000 rpm without load (A/T in P or N, M/T in
neutral) until the radiator fan comes on, then let it
idle.
4. Turn the ignition switch to LOCK (0), and wait
10 seconds.
5. Turn the ignition switch to ON (II).
6. Check for Temporary DTCs or DTCs with the HDS.
Is DT C P1683 indicated?
YES − Go to step 7.
NO − Intermittent failure, the system is OK at this
time. Check for poor connections or loose terminals
at the throttle body and the ECM/PCM.
7. Turn the ignition switch to LOCK (0).
8. Disconnect the intake air duct from the throttle
body (see page 11-388).
9. Push the throttle valve closed as shown.
10. Release the throttle valve.
Does the throttle valve return?
−
YES Clean the throttle body (see page 11-385),
then go to step 12 and recheck. If DTC P1683 is
indicated, go to step 11.
NO − Go to step 11.
11. Replace the throttle body (see page 11-388).
12. Turn the ignition switch to ON (II).
13. Reset the ECM/PCM with the HDS.
14. Do the ECM/PCM idle learn procedure (see page
11-343).
15. Turn the ignition switch to LOCK (0), and wait
10 seconds.
16. Turn the ignition switch to ON (II).
17. Check for Temporary DTCs or DTCs with the HDS.
Is DT C P1683 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.
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＊０１
11-253