Honda 2004 Odyssey Service Manual page 720

2001 Model
DTC P0780: Mechanical Problem in Hydraulic
Control System for Shift Solenoid Valve A
and A/T Clutch Pressure Control Solenoid
Valves A and B, or Problem in Hydraulic
Control System
NOTE:
• Record all freeze data and review General
Troubleshooting Information (see page 14-3) before
you troubleshoot.
• Keep replacement solenoid valves on hand:
– Torque converter clutch solenoid valve-shift
solenoid valve A
– A/T clutch pressure control solenoid valves A and B
1. Check whether the scan tool or the HDS indicates
another code.
Does the scan tool or the HDS indicate another
code?
YES Perform the Troubleshooting Flowchart for
the indicated Code(s). Recheck for code P0780 after
troubleshooting.
NO Go to step 2.
NOTE: Do not continue with this troubleshooting
until the causes of any other DTCs have been
corrected.
2. Turn the ignition switch OFF.
3. Replace the shift solenoid valve A (and torque
converter clutch solenoid valve as a set) (see page
14-130) and A/T clutch pressure control solenoid
valves A and B (see page 14-133).
4. Clear the DTC with the scan tool or the HDS.
5. Drive the vehicle for several minutes in 1st, 2nd,
3rd, and 4th gears in D4 position.
6. Recheck for code P0780.
Does the scan tool or the HDS indicate code
P07 80?
YES Replace the transmission.
NO The problem has been corrected.
14-107