Honda ACCORD HYBRID 2005 Service Manual page 958

Automatic Transmission
D T C T r o u b l e s h o o t i n g ( c o n t ' d )
DTC P0741: Torque Converter Clutch
Hydraulic Circuit Stuck OFF
NOTE: Record all freeze data and review General
Troubleshooting Information (see page 14-4) before
y o u troubleshoot.
1. W a r m up the engine to n o r m a l operating
temperature (the radiator fan comes on).
2. Make sure that the t r a n s m i s s i o n is filled to the
proper level, and check for f l u i d leaks.
3. Drain the ATF (see step 3 on page 14-231) t h r o u g h a
strainer. Inspect the strainer for metal debris or
excessive clutch material.
Does the strainer have metal debris or excessive
clutch material?
YES—Replace the t r a n s m i s s i o n . •
NO—Replace the ATF (see step 5 on page 14-231),
then go to step 4.
4. Clear the DTC w i t h the HDS.
5. Choose Shift Solenoid D in Miscellaneous Test
M e n u , and check that the shift solenoid valve D
operates w i t h the HDS.
Is a clicking sound heard?
Y E S — G o t o step 6.
NO—Replace shift solenoid valve D (see page
14-206), then go to step 10.
6. Choose Clutch Pressure Control (Linear) Solenoid C
in Miscellaneous Test M e n u , and test the A/T clutch
pressure control solenoid valve C w i t h the HDS.
Is the system OK?
8. Test-drive the vehicle at 55 m p h (88 km/h) for
2 minutes w h i l e m o n i t o r i n g the vehicle speed w i t h
the HDS.
9. Monitor the OBD status for P0741 in the DTCs/
Freeze Data in A/T M o d e M e n u for a pass/fail.
Does the result indicate a fail?
YES—Repair the faulty t o r q u e converter clutch
m e c h a n i s m , torque converter clutch hydraulic
circuit, lock-up shift valve, or lock-up control valve,
or replace the t r a n s m i s s i o n . •
NO—Intermittent failure, t h e system is OK at this
time. If the tester indicates NOT COMPLETE, return
to step 8 and recheck. •
10. Clear the DTC w i t h the HDS.
11. Test-drive the vehicle for several minutes under the
same conditions as those indicated by the freeze
data.
12. Monitor the OBD status f o r P0741 in the DTCs/
Freeze Data in A/T M o d e M e n u for a pass/fail.
Does the result indicate a pass?
YES—The p r o b l e m has been c o r r e c t e d . •
NO—Return to step 5 and recheck.
Y E S — G o t o step 7.
NO—Follow the instructions indicated on the HDS
by the tester result. Go to step 10 if any part is
replaced.
7. Run the engine until the engine coolant
temperature reaches 176 °F (80 °C).
14-122