Honda Accord 2008 Manual page 631

07/11/02 09:15:21 61TA0000_110_0312
VTEC/VTC
DTC Troubleshooting (cont'd)
DTC P2649:
A (Intake Valve Side) Circuit High Voltage
(PZEV model)
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. Start the engine. Hold the engine speed at
3,000 rpm without load (in P or N) until the radiator
fan comes on, then let it idle.
4. Check for Temporary DTCs or DTCs with the HDS.
Is DT C P2649 indicated?
YES
NO −
time. Check for poor connections or loose terminals
at rocker arm oil control solenoid A and the PCM.
5. Turn the ignition switch to LOCK (0).
6. Disconnect the rocker arm oil control solenoid A 2P
connector.
7. Connect rocker arm oil control solenoid A 2P
connector terminal No. 2 to body ground with a
jumper wire.
＊０１
ROCKER ARM OIL CONTROL SOLENOID A 2P CONNECTOR
11-312
Rocker Arm Oil Control Solenoid
−
Go to step 5.
Intermittent failure, the system is OK at this
VTSA (GRN/YEL)
JUMPER WIRE
Wire side of female terminals
8. Turn the ignition switch to ON (II).
9. Select the VTEC TEST in the INSPECTION MENU,
and do the Solenoid Valve ACTIVATION of the
ROCKER ARM SOLENOID A with the HDS.
Does the RET URN SIGNAL indicate ON when the
COMMAND is turned OF F ?
−
YES Go to step 10.
NO − Go to step 14.
10. Turn the ignition switch to LOCK (0).
11. Jump the SCS line with the HDS.
12. Disconnect PCM connector B (49P).
13. Check for continuity between PCM connector
terminal B35 and body ground.
NOTE: Do not remove the jumper wire from the
rocker arm oil control solenoid A connector.
PCM CONNECTOR B (49P)
VTSA (GRN/YEL)
Terminal side of female terminals
Is there continuity?
YES − Check for poor connections or loose
terminals at the PCM and rocker arm oil control
solenoid A, then go to step 25.
−
NO Repair open in the wire between the PCM
(B35) and rocker arm oil control solenoid A, then go
to step 19.
ＴＡ０８ＡＥＪＫ７７１０００９２６４９ＦＡＡＴ３０
＊０２