Honda Accord 2008 Manual page 611

07/11/02 09:14:25 61TA0000_110_0292
VTEC/VTC
DTC Troubleshooting (cont'd)
DTC P0344: CMP Sensor A Circuit
Intermittent Interruption
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, and let it idle for 10 seconds.
4. Check the CMP A NOISE in the DATA LIST with the
HDS.
Are 0 counts indicated?
YES − Go to step 7.
−
NO Go to step 5.
5. Test-drive the vehicle for several minutes in the
range of these recorded freeze data parameters:
• ENGINE SPEED
• VSS
6. Check the CMP A NOISE in the DATA LIST with the
HDS.
Are 0 counts indicated?
−
YES Go to step 7.
NO − Intermittent failure, the system is OK at this
time. Check for poor connections or loose terminals
at CMP sensor A and the ECM/PCM.
7. Check for poor or loose connections and terminals
at these locations:
• CMP sensor A
• ECM/PCM
• Engine ground
• Body ground
Are the connections and terminals OK ?
−
YES Go to step 8.
−
NO Repair the connections or terminals, then go
to step 11.
11-292
8. Check for damage on the CMP sensor A pulser
plate (see page 6-30).
Is the pulser plate damaged?
YES − Replace the CMP sensor A pulser plate
(see page 6-30), then go to step 11.
−
NO Go to step 9.
9. Turn the ignition switch to LOCK (0).
10. Replace CMP sensor A (see page 11-326).
11. Turn the ignition switch to ON (II).
12. Reset the ECM/PCM with the HDS.
13. Do the ECM/PCM idle learn procedure (see page
11-343).
14. Start the engine, and let it idle for 10 seconds.
15. Check for Temporary DTCs or DTCs with the HDS.
Is DT C P0344 indicated?
−
YES Check for poor connections or loose
terminals at CMP sensor A and the ECM/PCM, then
go to step 1.
NO − Troubleshooting is complete. If any other
Temporary DTCs or DTCs are indicated, go to the
indicated DTC's troubleshooting.
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