Honda Accord 2008 Manual page 625

07/11/02 09:15:19 61TA0000_110_0306
VTEC/VTC
DTC Troubleshooting (cont'd)
16. Check for Temporary DTCs or DTCs with the HDS.
Is DT C P2648 indicated?
YES − Check for poor connections or loose
terminals at the rocker arm oil control solenoid and
the ECM/PCM, then go to step 1.
−
NO Go to step 17.
17. 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 16,
go to the indicated DTC's troubleshooting.
NO − If the screen indicates FAILED, check for poor
connections or loose terminals at the rocker arm oil
control solenoid and the ECM/PCM, then go to step
1. If the screen indicates NOT COMPLETED, go to
step 15.
18. Reconnect all connectors.
19. Update the ECM/PCM if it does not have the latest
software (see page 11-231), or substitute a known-
good ECM/PCM (see page 11-7).
20. Do the VTEC TEST in the INSPECTION MENU with
the HDS.
21. Check for Temporary DTCs or DTCs with the HDS.
Is DT C P2648 indicated?
−
YES Check for poor connections or loose
terminals at the rocker arm oil control solenoid and
the ECM/PCM. If the ECM/PCM was updated,
substitute a known-good ECM/PCM (see page 11-7),
then go to step 20. If the ECM/PCM was substituted,
go to step 1.
−
NO Go to step 22.
11-306
22. Monitor the OBD STATUS for DTC P2648 in the
DTCs MENU with the HDS.
Does the screen indicate PASSED?
YES − If the ECM/PCM was updated,
troubleshooting is complete. If the ECM/PCM was
substituted, replace the original ECM/PCM
(see page 11-232). If any other Temporary DTCs or
DTCs were indicated in step 21, go to the indicated
DTC's troubleshooting.
NO − If the screen indicates FAILED, check for poor
connections or loose terminals at the rocker arm oil
control solenoid and the ECM/PCM. If the ECM/
PCM was updated, substitute a known-good ECM/
PCM (see page 11-7), then go to step 20. If the ECM/
PCM was substituted, go to step 1. If the screen
indicates NOT COMPLETED, go to step 20.