Honda Accord 2008 Manual page 865

07/11/02 08:46:20 61TA0000_140_0022
Automatic Transmission
Symptom Troubleshooting Index (cont'd)
Symptom
Transmission does
not shift
Excessive shock or
flares on all
upshifts and
downshifts
Excessive shock or
flares on 1-2
upshift or 2-1
downshift
14-20
Probable Cause(s)
1. Input shaft (mainshaft) speed
sensor defective
2. Output shaft (countershaft)
speed sensor defective
1. A/T clutch pressure control
solenoid valve B 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. ATF temperature sensor
defective
6. Foreign material in separator
plate orifice
1. Shift solenoid valve E defective
2. A/T clutch pressure control
solenoid valve A defective
3. A/T clutch pressure control
solenoid valve B defective
4. A/T clutch pressure control
solenoid valve C defective
5. 2nd clutch transmission fluid
pressure switch defective
6. Foreign material in separator
plate orifice
7. 1st accumulator defective
8. 2nd accumulator defective
9. 1st check ball stuck
10. 2nd check ball stuck
11. Lock-up shift valve defective
12. 1st clutch defective
13. 2nd clutch defective
Notes
• Check for a stored DTC, and check for loose
connectors.
• Check the input shaft (mainshaft) speed sensor
and the output shaft (countershaft) speed sensor
installation.
• Check for a stored DTC, and check for loose
connectors.
• Inspect the solenoid valve filter/gasket and the
O-rings for wear and damage, and inspect the
solenoid valves for seizure.
• Check the input shaft (mainshaft) speed sensor
and the output shaft (countershaft) speed sensor
installation.
• Check for a stored DTC, and check for loose
connectors.
• Inspect the solenoid valve filter/gasket and the
O-rings for wear and damage, and inspect the
solenoid valves for seizure.
• Check the 1st and the 2nd clutch pressures.
• Inspect the clutch piston, the clutch piston check
valve, and the O-rings. Check the spring retainer
and the retainer seal for wear and damage.
Inspect the clearance between the clutch end-
plate and the top disc. If the clearance is out of
tolerance, inspect the clutch discs and the plates
for wear and damage. If the discs are worn or
damaged, replace them as a set. Inspect the
clutch wave-plate height. If the height is out of
tolerance, replace the wave-plate. If the discs and
the plates are OK, adjust the clearance with the
clutch end-plate.
• Inspect the 1st clutch feed pipe. If the 1st clutch
feed pipe is scored, replace the end cover.
• Replace the secondary shaft if the bushing for the
1st clutch feed pipe is loose or damaged.