Honda Accord 2008 Manual page 634

07/11/02 09:15:21 61TA0000_110_0315
DTC P2651: Rocker Arm Oil Pressure Switch
B Circuit Low Voltage
DTC P2652: Rocker Arm Oil Pressure Switch
B Circuit High Voltage
Special Tools Required
• Pressure gauge adapter 07NAJ-P07010A
• A/T low pressure gauge w/panel 07406-0070301
• A/T pressure hose 07406-0020201
• A/T pressure hose, 2,210 mm 07MAJ-PY4011A
• A/T pressure hose, adapter 07MAJ-PY40120
• Oil pressure hose 07ZAJ-S5AA200
NOTE: Before you troubleshoot, record all freeze data
and any on-board snapshot, and review the general
troubleshooting information (see page 11-3).
1. Check the engine oil level.
Is the level OK ?
YES − Go to step 2.
NO − Adjust the engine oil level to the proper level,
then go to step 29.
2. Turn the ignition switch to ON (II).
3. Clear the DTC with the HDS.
4. Select the VTEC TEST in the INSPECTION MENU,
and do the VTEC TEST with the HDS.
Are V T ECEX -0 and V T ECIN-0 indicated?
YES − Intermittent failure, the system is OK at this
time. Check for poor connections or loose terminals
at rocker arm oil pressure switch B, and rocker arm
oil control solenoid B, and the PCM.
NO − If the result is
• VTECEX-1: Go to step 5.
• VTECEX-3: Go to step 14.
• VTECEX-3 and VTECIN-3 indicated at the same
time: Check the oil passage between the engine
oil pressure switch and the rocker arm oil control
valve filter. If it is OK, go to step 14.
• VTECEX-2, VTECEX-4: Inspect the exhaust side
VTEC system. If it is OK, replace the rocker arm
oil control valve (see page 11-328), then go to
step 29.
• VTECIN-0: The intake valve side VTEC system is
OK at this time.
• VTECIN-1, 2, 3, 4: The intake valve side VTEC
system is faulty. Go to the troubleshooting for
P2646/P2647 (see page 11-297).
5. Turn the ignition switch to LOCK (0).
6. Disconnect the rocker arm oil pressure switch B 2P
connector.
ＴＡ０８ＡＥＪＫ７７１０００９２６５１ＦＡＡＴ００
(cont'd)
11-315