Honda ACCORD HYBRID 2005 Service Manual page 972

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 P0797: A/T Clutch Pressure Control
Solenoid Valve C Stuck ON
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 normal operating
temperature (the radiator fan comes on).
2. Make sure that the transmission is filled to the
proper level, and check for fluid 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. Test-drive the vehicle in the D position in all five
gears at speeds over 12 m p h (20 km/h) for more
than 20 seconds, then s l o w d o w n to a stop.
6. Retest-drive the vehicle in the D position in all five
gears at speeds over 12 m p h (20 km/h) for more
than 20 seconds, then s l o w d o w n to a stop.
7. M o n i t o r the OBD status for P0797 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?
8. Clear the DTC w i t h the HDS.
9. 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?
YES—Intermittent failure, the system is OK at this
time. M
NO—Follow the instructions indicated on the HDS
by the tester r e s u l t Go to step 10 if any part is
replaced.
10. Clear the DTC w i t h the HDS.
11. Test-drive the vehicle in the D position in all five
gears at speeds over 12 m p h (20 km/h) for more
than 20 seconds, then slow d o w n to a stop.
12. Retest-drive the vehicle in the D position in all five
gears at speeds over 12 m p h (20 km/h) for more
than 20 seconds, then s l o w d o w n to a stop.
13. Monitor the OBD status for P0797 in the DTCs/
Freeze Data in A/T Mode 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 corrected. •
NO—Return to step 8 and recheck.
Y E S — G o t o step 8.
NO—Intermittent failure, the system is OK at this
t i m e , if the tester indicates NOT COMPLETE, return
to step 5 and recheck. •
14-136