Honda ACCORD HYBRID 2005 Service Manual page 475

DTC P1684: Throttle Valve Return Spring
Performance Problem
ACAUTION
Do not insert your fingers into the installed throttle
body w h e n you turn the ignition switch ON (II) or
while the ignition switch is ON (II). If you do, y o u
will seriously injure your finger if the throttle valve
is activated.
1. Turn the ignition switch ON (II).
2. Clear the DTC w i t h the HDS.
3. Start the engine. Hold the engine speed at
3,000 rpm w i t h o u t load (in Park or neutral) until the
radiator fan comes on, then let it idle.
4. Turn the ignition switch OFF, and wait 10 seconds.
5. Turn the ignition switch ON (II).
6. Check for Temporary DTCs or DTCs w i t h the HDS.
Is DTC P1684 indicated?
Y E S — G o t o step 7.
NO—Intermittent failure, system is OK at this t i m e .
Check for poor connections or loose terminals at
the throttle body and the throttle actuator control
m o d u l e . •
7. Turn the ignition switch OFF.
8. Disconnect the intake air duct f r o m the throttle
body.
9. Push the throttle valve open as s h o w n .
NOTE:
• Do not operate the ignition switch during the
check.
• Be careful not to pinch your fingers during the
check.
10. Release the throttle valve.
Does the throttle valve return?
Y E S — C l e a n the throttle body (see page 11-381),
then go to step 13.
N O — G o t o step 11.
11. Turn the ignition switch OFF.
12. Replace the throttle body (see page 11-386).
13. Turn the ignition switch ON (II).
14. Reset the PCM w i t h the HDS.
15. Do the PCM idle learn procedure (see page 11-340).
16. Turn the ignition switch OFF, and w a i t 10 seconds.
17. Turn the ignition switch ON (II).
18. Check for Temporary DTCs or DTCs w i t h the HDS.
Are any Temporary DTCs or DTCs indicated?
Y E S — I f DTC P1684 is indicated, check for poor
connections or loose terminals at the throttle body
and the throttle actuator control m o d u l e , then go to
step 1. If any other T e m p o r a r y DTCs or DTCs are
indicated, go to the indicated D T C s
troubleshooting.
NO—Troubleshooting is complete. •
11-235