Honda 2004 Odyssey Service Manual page 874

Symptom
Torque converter clutch
does not operate
smoothly
Torque converter clutch
does not engage
A/T gear position
indicator does not
indicate shift lever
positions
Speedometer and
odometer do not work
The engine does not rev
to high rpm, and the
transmission upshifts at
low rpm. (Engine at
normal operating
temperature)
Probable cause(s)
1. Torque converter clutch
solenoid valve defective
2. A/T clutch pressure control
solenoid valve C defective
3. Torque converter clutch
piston defective
4. Torque converter check valve
defective
5. Lock-up shift valve defective
6. Lock-up control valve
defective
7. Lock-up timing valve
defective
1. Torque converter clutch
solenoid valve defective
2. A/T clutch pressure control
solenoid valve C defective
3. Input shaft (mainshaft) speed
sensor defective
4. Output shaft (countershaft)
speed sensor defective
5. Torque converter clutch
piston defective
6. Torque converter check valve
defective
7. Lock-up shift valve defective
8. Lock-up control valve
defective
1. Transmission range switch
defective or out of adjustment
2. Shift cable broken or out of
adjustment
3. Joint in shift cable and
transmission or body worn
Output shaft (countershaft) speed
sensor defective
VTEC rocker arms defective
Notes
• Check the D indicator, and check for loose
connectors. Inspect the A/T clutch pressure
control solenoid valve body gasket for wear
and damage. If the A/T clutch pressure control
solenoid valve is stuck, inspect the CPC valves.
• Center all engine mounts.
Check the D indicator, and check for loose
connectors. Inspect the A/T clutch pressure
control solenoid valve body gasket for wear and
damage. If the A/T clutch pressure control
solenoid valve is stuck, inspect the CPC valves.
• Check the D indicator, and check for loose
connectors. Inspect the transmission range
switch. If the transmission range switch is
faulty, replace it. If the transmission range
switch is out of adjustment, adjust it and the
shift cable.
• Check for a loose shift cable at the shift lever
and the transmission control shaft.
Check the D indicator, and check for loose
connectors.
Check the engine rocker arms as described.
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