Honda 2004 Odyssey, Service Manual

Page: 938 / 2459

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Ｓ０Ｘ４ＡＡ１Ｋ７７１０００９０７４０ＦＡＡＴ００
DTC P0740:
YES
NO
YES
NO
YES
NO
14-325
Problem in Lock-up Control
System
NOTE:
• Record all freeze data and review General
Troubleshooting Information (see page 14-247)
before you troubleshoot.
• Keep these replacement solenoid valves on hand:
– Torque converter clutch solenoid valve
– A/T clutch pressure control solenoid valve C
1. Check whether the scan tool or the HDS indicates
another code.
Perform the Troubleshooting Flowchart for
the indicated code(s). Recheck for code P0740 after
troubleshooting.
Go to step 2.
NOTE: Do not continue with this troubleshooting
until the causes of any other DTCs have been
corrected.
2. Measure the line pressure (see page 14-355).
Go to step 3.
Replace the transmission.
3. Replace torque converter clutch solenoid
valve (see page 14-357).
4. Replace A/T clutch pressure control solenoid valve
C (see page 14-363).
5. Clear the DTC with the scan tool or the HDS.
6. Using the scan tool, check to be sure that the
engine coolant temperature is 176°F (80°C) or
above.
7. Drive the vehicle under the same conditions as
those indicated by the freeze data, or at 55 mph
(88 km/h) with very steady throttle for more than 1
minute.
8. Recheck for code P0740.
Remove the torque converter and inspect the
O-ring. If the O-ring is missing, replace the O-ring.
If the O-ring is damaged or OK, replace the
transmission and torque converter.
The system is OK at this time.
Does the scan tool or the HDS indicate another
code?
Is the line pr essur e within the ser vice limit?
Does the scan tool or the HDS indicate code
P07 40?
03/07/29 09:39:01 61S0X050_140_0328