Honda Accord 2008 Manual page 624

07/11/02 09:15:19 61TA0000_110_0305
DTC P2648:
Circuit Low Voltage (All models except PZEV)
NOTE: Before you troubleshoot, record all freeze data
and any on-board snapshot, and review the general
troubleshooting information (see page 11-3).
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Do the VTEC TEST in the INSPECTION MENU with
the HDS.
Is the result OK ?
YES
time. Check for poor connections or loose terminals
at the rocker arm oil control solenoid and the
ECM/PCM.
−
NO
4. Turn the ignition switch to LOCK (0).
5. Disconnect the rocker arm oil control solenoid 2P
connector.
6. Measure resistance between rocker arm oil control
solenoid 2P connector terminals No. 1 and No. 2.
＊０１
ROCKER ARM OIL CONTROL SOLENOID 2P CONNECTOR
Is there 14 30
YES
−
NO
Rocker Arm Oil Control Solenoid
− Intermittent failure, the system is OK at this
Go to step 4.
Terminal side of male terminals
− at room temperature?
− Go to step 7.
Go to step 10.
7. Jump the SCS line with the HDS.
8. Disconnect ECM/PCM connector B (49P).
9. Check for continuity between ECM/PCM connector
terminal B35 and body ground.
ECM/PCM CONNECTOR B (49P)
VTS (GRN/YEL)
Terminal side of female terminals
Is there continuity?
YES − Repair short in the wire between the ECM/
PCM (B35) and the rocker arm oil control solenoid,
then go to step 11.
−
NO Go to step 18.
10. Replace the rocker arm oil control valve (see page
11-327).
11. Reconnect all connectors.
12. Turn the ignition switch to ON (II).
13. Reset the ECM/PCM with the HDS.
14. Do the ECM/PCM idle learn procedure (see page
11-343).
15. Do the VTEC TEST in the INSPECTION MENU with
the HDS.
ＴＡ０８ＡＥＡＫ７２１０００９２６４８ＦＡＡＴ３０
＊０２
(cont'd)
11-305