Honda Accord 2008 Manual page 989

07/11/02 08:49:04 61TA0000_140_0146
Automatic Transmission
DTC Troubleshooting (cont'd)
DTC P0780: Shift Control System
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).
• This code is stored whenever DTCs P1730, P1731,
P1732, P1733, P1734 are detected.
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Test-drive the vehicle with the shift lever in D, and
let the transmission shift through all five gears.
4. Check for other Temporary DTCs or DTCs indicated
along with DTC P0780.
NOTE: DTC P0780 means there is one or more A/T
DTCs regarding the shift control system.
Are there other DT Cs?
YES − Go to the indicated DTC's troubleshooting.
• P1730 (see page 14-202)
• P1731 (see page 14-204)
• P1732 (see page 14-206)
• P1733 (see page 14-208)
• P1734 (see page 14-210)
−
NO Go to step 5.
5. Update the PCM if it does not have the latest
software (see page 11-231), or substitute a known-
good PCM (see page 14-8).
6. Test-drive the vehicle with the shift lever in D, and
let the transmission shift through all five gears.
14-144
7. Check for Temporary DTCs or DTCs with the HDS.
Is DT C P07 80 indicated?
YES − If the PCM was updated, substitute a known-
good PCM (see page 14-8), then go to step 6. If the
PCM was substituted, go to step 1.
−
NO Go to step 8.
8. Monitor the OBD STATUS for P0780 in the DTCs
MENU with the HDS.
Does the HDS indicate PASSED?
−
YES If the PCM was updated, troubleshooting is
complete. If the PCM was substituted, replace the
original PCM (see page 11-232). If any other
Temporary DTCs or DTCs were indicated in step 7,
go to the indicated DTC's troubleshooting.
−
NO If the PCM was updated and the HDS
indicates FAILED, substitute a known-good PCM
(see page 14-8), then go to step 6. If the PCM was
substituted, go to step 1. If the HDS indicates NOT
COMPLETED, go to step 6.
ＴＡ０８ＡＥＢＫ７７１０００９０７８０ＦＡＡＴ００