Honda Accord 2008 Manual page 627

07/11/02 09:15:19 61TA0000_110_0308
VTEC/VTC
DTC Troubleshooting (cont'd)
13. Turn the ignition switch to LOCK (0).
14. Reconnect all connectors.
15. Turn the ignition switch to ON (II).
16. Reset the PCM with the HDS.
17. Do the PCM idle learn procedure (see page 11-343).
18. Select the VTEC TEST in the INSPECTION MENU,
and do the Solenoid Valve ACTIVATION of the
ROCKER ARM SOLENOID A with the HDS.
19. Check for Temporary DTCs or DTCs with the HDS.
Is DT C P2648 indicated?
YES − Check for poor connections or loose
terminals at rocker arm oil control solenoid A and
the PCM, then go to step 1.
NO − Go to step 20.
20. Monitor the OBD STATUS for DTC P2648 in the
DTCs MENU with the HDS.
Does the screen indicate PASSED?
YES − Troubleshooting is complete. If any other
Temporary DTCs or DTCs were indicated in step 19,
go to the indicated DTC's troubleshooting.
−
NO If the screen indicates FAILED, go to step 1
and recheck. If the screen indicates NOT
COMPLETED, go to step 18.
11-308
21. Reconnect all connectors.
22. Update the PCM if it does not have the latest
software (see page 11-231), or substitute a known-
good PCM (see page 11-7).
23. Select the VTEC TEST in the INSPECTION MENU,
and do the Solenoid Valve ACTIVATION of the
ROCKER ARM SOLENOID A with the HDS.
24. Check for Temporary DTCs or DTCs with the HDS.
Is DT C P2648 indicated?
−
YES Check for poor connections or loose
terminals at rocker arm oil control solenoid A and
the PCM. If the PCM was updated, substitute a
known-good PCM (see page 11-7), then go to step
23. If the PCM was substituted, go to step 1.
−
NO Go to step 25.
25. Monitor the OBD STATUS for DTC P2648 in the
DTCs MENU with the HDS.
Does the screen 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 24,
go to the indicated DTC's troubleshooting.
−
NO If the screen indicates FAILED, check for poor
connections or loose terminals at rocker arm oil
control solenoid A and the PCM. If the PCM was
updated, substitute a known-good PCM (see page
11-7), then go to step 23. If the PCM was substituted,
go to step 1. If the screen indicates NOT
COMPLETED, go to step 23.