Honda Accord 2008 Manual page 613

07/11/02 09:14:26 61TA0000_110_0294
VTEC/VTC
DTC Troubleshooting (cont'd)
DTC P2646: Rocker Arm Oil Pressure Switch
Circuit Low Voltage (All models except PZEV)
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 to the proper level, then
go to step 20.
2. Turn the ignition switch to ON (II).
3. Clear the DTC with the HDS.
4. Do the VTEC TEST in the INSPECTION MENU with
the HDS.
Is the result OK ?
−
YES Intermittent failure, the system is OK at this
time. Check for poor connections or loose terminals
at the rocker arm oil pressure switch, the rocker
arm oil control solenoid, and the ECM/PCM.
−
NO Go to step 5.
5. Turn the ignition switch to LOCK (0).
6. Disconnect the rocker arm oil pressure switch 2P
connector.
7. Turn the ignition switch to ON (II).
11-294
8. Check the VTEC PRES SW in the DATA LIST with
the HDS.
Is SW IT CH ON indicated?
YES − Go to step 15.
NO − Go to step 9.
9. Turn the ignition switch to LOCK (0).
10. Remove the rocker arm oil pressure switch (A), and
attach the special tools as shown, then attach the
rocker arm oil pressure switch to the oil pressure
gauge adapter (B).
07406-0020201 or
07MAJ-PY4011A and
07406-0070301
07MAJ-PY40120
11. Reconnect the rocker arm oil pressure switch 2P
connector.
12. Start the engine.
13. Do the VTEC TEST in the INSPECTION MENU with
the HDS.
ＴＡ０８ＡＥＡＫ７２１０００９２６４６ＦＡＡＴ３０
A
22 N·m
(2.2 kgf·m,
16 lbf·ft)
B
07NAJ-P07010A
07ZAJ-S5AA200
＊０１