Honda Accord 2008 Manual page 639

07/11/02 09:15:22 61TA0000_110_0320
VTEC/VTC
DTC Troubleshooting (cont'd)
DTC P2653: Rocker Arm Oil Control Solenoid
B (Exhaust Valve Side) Circuit Low Voltage
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. Select the VTEC TEST in the INSPECTION MENU,
and do the Solenoid Valve ACTIVATION of ROCKER
ARM SOLENOID B with the HDS.
4. Check for Temporary DTCs or DTCs with the HDS.
Is DT C P2653 indicated?
YES − Go to step 5.
−
NO Intermittent failure, the system is OK at this
time. Check for poor connections or loose terminals
at rocker arm oil control solenoid B and the PCM.
5. Turn the ignition switch to LOCK (0).
6. Disconnect the rocker arm oil control solenoid B 2P
connector.
7. Turn the ignition switch to ON (II).
8. Select the VTEC TEST in the INSPECTION MENU,
and do the Solenoid Valve ACTIVATION of ROCKER
ARM SOLENOID B with the HDS.
Does the RET URN SIGNAL indicate OF F when
the COMMAND is turned ON?
−
YES Go to step 9.
NO − Replace the rocker arm oil control valve
(see page 11-328), then go to step 13.
11-320
9. Turn the ignition switch to LOCK (0).
10. Jump the SCS line with the HDS.
11. Disconnect PCM connector C (49P).
12. Check for continuity between PCM connector
terminal C24 and body ground.
PCM CONNECTOR C (49P)
VTSB (GRN/RED)
Terminal side of female terminals
Is there continuity?
YES − Repair short in the wire between the PCM
(C24) and rocker arm oil control solenoid B, then go
to step 14.
NO − Check for poor connections or loose terminals
at the PCM and rocker arm oil control solenoid B,
then go to step 21.
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＊０１