Honda ACCORD HYBRID 2005 Service Manual page 981

DTC P0848: Open in 3rd Clutch Transmission
Fluid Pressure Switch Circuit, or 3rd Clutch
Transmission Fluid Pressure Switch Stuck
OFF
NOTE:
• Record all freeze data and review General
T r o u b l e s h o o t i n g Information (see page 14-4) before
y o u troubleshoot.
• This code is caused by an electrical circuit p r o b l e m
and cannot be caused by a mechanical p r o b l e m in the
transmission.
1. Clear the DTC w i t h the HDS.
2. Start the engine, and w a r m it up to normal
operating temperature (the radiator fan comes on).
3. Drive the vehicle in 3rd gear in the D3 position, and
verify w i t h the HDS in the A/T data list that the
SHIFT MAP NUMBER indicates 3rd.
4. Check the 3rd PRES SWITCH signal w i t h the HDS in
the A/T data list.
Is the 3rd PRES SWITCH ON?
Y E S — G o t o step 5.
N O — G o t o step 7.
5. Drive the vehicle in 3rd gear in the D3 position for
more than 5 seconds, then shift the shift lever into
the D position, and drive in 4th gear for more than
5 seconds. Slow d o w n and stop the wheels.
6. M o n i t o r the OBD status for P0848 in the DTCs/
Freeze Data in A/T Mode Menu for a pass/fail.
Does the result Indicate a fail?
Y E S — G o t o step 7.
NO—Intermittent failure, the system is OK at this
t i m e . Check for poor connections or loose terminals
at the 3rd clutch transmission fluid pressure switch
and the PCM. If the tester indicates NOT
COMPLETE, return to step 5 and recheck. •
7. Turn the ignition switch OFF.
8. Disconnect the 3rd clutch transmission fluid
pressure switch connector.
9. Turn the ignition switch ON (II).
10. Measure the voltage between the 3rd clutch
transmission fluid pressure switch connector
terminal and body g r o u n d .
3RD C L U T C H T R A N S M I S S I O N FLUID
P R E S S U R E SWITCH C O N N E C T O R
1
ToP3SW
(BLU/WHT)
X)
W i r e side of f e m a l e t e r m i n a l s
Is there about 5 V?
YES—Replace the 3rd clutch transmission fluid
pressure switch (see page 14-225), then go to step
12.
NO—Go to step 11.
(cont'd)
14-145