Honda ACCORD HYBRID 2005 Service Manual page 353

DTC P0301: No. 1 Cylinder Misfire Detected
DTC P0302: No. 2 Cylinder Misfire Detected
DTC P0303: No. 3 Cylinder Misfire Detected
DTC P0304: No. 4 Cylinder Misfire Detected
DTC P0305: No. 5 Cylinder Misfire Detected
DTC P0306: No. 6 Cylinder Misfire Detected
1. Note this freeze data:
• Engine speed
• Vehicle speed
• Throttle position
• CLV
2. Do the DTC CLEAR in the CLEAR MENU w i t h the
HDS.
3. Start the engine w i t h o u t load (in Park or neutral),
then let it idle.
4. Monitor the OBD STATUS for DTC P0301, P0302,
P0303, P0304, P0305, or P0306 in the DTCs MENU
w i t h the HDS.
Does the screen indicate FAILED?
Y E S — G o to step 9.
NO—If the screen indicates PASSED, go to step 5. If
the screen indicates EXECUTING, keep driving until
a result comes on. If the screen indicates OUT OF
CONDITION, w a i t for several minutes, and recheck.
5. Check the CYL1 MISFIRE, CYL2 MISFIRE, CYL3
MISFIRE, CYL4 MISFIRE, CYL5 MISFIRE, and/or
CYL6 MISFIRE in the DATA LIST for 10 minutes
w i t h the HDS.
Does CYL1 MISFIRE, CYL2 MISFIRE, CYL3
MISFIRE, CYL4 MISFIRE, CYL5 MISFIRE,
and/or CYL6 MISFIRE show misfire counts?
Y E S — G o t o step 9.
N O — G o t o step 6.
6. Test-drive the vehicle for several minutes in the
range of the recorded freeze data.
7. M o n i t o r the OBD STATUS for DTC P0301, P0302,
P0303, P0304, P0305, or P0306 in the DTCs MENU
w i t h the HDS.
Does the screen indicate FAILED?
Y E S — G o t o step 9.
NO—If the screen indicates PASSED, go to step 8. If
the screen indicates EXECUTING, keep driving until
a result comes on. If the screen indicates OUT OF
CONDITION, go to step 6 and recheck.
8. Check the CYL1 MISFIRE, CYL2 MISFIRE, CYL3
MISFIRE, CYL4 MISFIRE, CYL5 MISFIRE, and/or
CYL6 MISFIRE in the DATA LIST for 10 minutes
w i t h the HDS.
Does CYL1 MISFIRE, CYL2 MISFIRE, CYL3
MISFIRE, CYL4 MISFIRE, CYL5 MISFIRE,
and/or CYL6 MISFIRE show misfire counts?
Y E S — G o t o step 9.
NO—Intermittent failure, system is OK at this t i m e .
Check the fuel and ignition system circuit
connectors for loose w i r e s or poor connections. •
9. Turn the ignition switch OFF.
10. Exchange the ignition coil f r o m the p r o b l e m
cylinder w i t h one f r o m another cylinder.
11. Test-drive the vehicle for several minutes in the
range of the recorded freeze data.
(cont'd)
11-113