Honda Accord 2008 Manual page 963

07/11/02 08:48:09 61TA0000_140_0120
Automatic Transmission
DTC Troubleshooting (cont'd)
DTC P0731: Problem in 1st Clutch and 1st
Clutch Hydraulic Circuit (1st Gear Incorrect
Ratio)
NOTE: Before you troubleshoot, record all freeze data
and any on-board snapshot with the HDS, and review
General Troubleshooting Information (see page 14-4).
1. Warm up the engine to normal operating
temperature (the radiator fan comes on).
2. Make sure that the transmission is filled to the
proper level, and check for fluid leaks.
3. Drain the ATF (see step 3 on page 14-242) through a
strainer. Inspect the strainer for metal debris or
excessive clutch material.
Does the strainer have metal debris or excessive
clutch material?
−
YES Replace the transmission, then go to step 12.
NO − Replace the ATF (see page 14-242), then go to
step 4.
4. Measure the line pressure (see page 14-218).
Is the line pressure within the service limit?
YES − Go to step 5.
−
NO Repair the ATF pump and the regulator valve,
or replace the transmission, then go to step 12.
5. Measure the 1st clutch pressure (see page 14-218).
Is the 1st clutch pressure within the service
limits?
YES − Go to step 6.
NO − Shift valves B and C are stuck. Repair these
valves and the hydraulic circuit, or replace the
transmission, then go to step 12.
14-118
6. Test stall speed in D (see page 14-217).
Does the stall speed test within the service limits?
YES − Go to step 7.
NO − Shift valves A and D are stuck. Repair these
valves and the hydraulic circuit, or replace the
transmission, then go to step 12.
7. Turn the ignition switch to ON (II).
8. Clear the DTC with the HDS.
9. Test-drive the vehicle in 1st gear with the shift lever
in D at speeds over 7 mph (12 km/h) with the
engine speed above 1,000 rpm for at least
12 seconds.
10. Check for Temporary DTCs or DTCs with the HDS.
Is DT C P07 31 indicated?
YES − Repair the 1st clutch, or replace the
transmission, then go to step 12.
−
NO Go to step 11.
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