Honda ACCORD HYBRID 2005 Service Manual page 494

Electronic Throttle Control System
D T C T r o u b l e s h o o t i n g ( c o n t ' d )
DTC P2176: Throttle Actuator Control System
Idle Position Not Learned
NOTE: If DTC P2135 or P2552 Is stored at the same time
as DTC P2176, troubleshoot DTC P2135 or P2552 first,
then recheck for DTC P2176.
1. Turn the ignition switch ON (II).
2. Clear the DTC w i t h the HDS.
3. Turn the ignition switch OFF.
4. Turn the ignition switch ON (II), and wait
10 seconds.
5. Check for Temporary DTCs or DTCs w i t h the HDS.
Is DTC P2176 indicated?
Y E S — G o t o step 6.
NO—Intermittent failure, system is OK at this time.
Check for poor connections or loose terminals at
the throttle body and the throttle actuator control
module, then clean the throttle body (see page
11-38D.B
6. Turn the ignition switch OFF.
7. Disconnect the intake air duct f r o m the throttle
body.
8. Turn the ignition switch ON (II).
9. Clear the DTC w i t h the HDS.
10. Do the ETCS TEST in the INSPECTION MENU w i t h
the HDS.
11. Visually check the throttle valve operation.
NOTE: Be careful not to pinch your fingers. Keep
your hands away f r o m the throttle valve.
Does the throttle valve move to its fully closed
position?
Y E S - G o t o step 12.
N O — G o t o step 13.
12. Check for sludge or carbon on the throttle valve.
Is there sludge or carbon on the throttle valve?
Y E S — C l e a n the throttle body (see page 11-381),
then go to step 21 and recheck.
NO—Go to step 18.
13. Turn the ignition switch OFF.
14. Disconnect the throttle body 6P connector.
15. Disconnect the throttle actuator control module 16P
connector (see page 11-265).
16. Connect throttle body 6P connector terminals No. 5
and No. 6 w i t h a j u m p e r wire.
THROTTLE BODY 6P C O N N E C T O R
1 2 3 4 5 6
M - (GRN)
M + (BLU)
J U M P E R WIRE
Wire side of female t e r m i n a l s
11-254