Honda Fit/Jazz - DTC Troubleshooting: P0300 (75) and some of P0301 (71), P0302 (72), P0303 (73), P0304 (74) (With ETCS)
DTC Troubleshooting: P0300 (75) and some of P0301 (71), P0302 (72), P0303 (73), P0304 (74)
| DTC P0300: | Random Misfire and Any Combination of the Following: |
| DTC P0302: | No. 2 Cylinder Misfire |
| DTC P0304: | No. 4 Cylinder Misfire |
NOTE:
- If the misfiring is frequent enough to trigger detection of increased emissions during 2 consecutive driving cycles, the MIL will come on, and DTC P0300 (and some combination of P0301 through P0304) will be stored.
- If the misfiring is frequent enough to damage the catalyst, the MIL will blink whenever the misfiring occurs, and DTC P0300 (and some combination of P0301 through P0304) will be stored. When the misfiring stops, the MIL will remain on.
- Troubleshoot the following DTCs first if any of them were stored along with the random misfire DTC(s):
P0068, P0106, P0107, P0108: Manifold absolute pressure (MAP) sensor
P0171, P0172: Fuel system
P0201-P0204, P0261, P0262, P0264, P0265, P0267, P0268, P0270, P0271: Injector
P0335, P0339: Crankshaft position (CKP) sensor
P0342, P0343, P0344: Camshaft position (CMP) sensor
P0351-P0358: Ignition coil
P0506, P0507: Idle control system
P0401, P0403, P0404, P0405, P0406, P0409, P0489, P0490: Exhaust gas recirculation (EGR) system
| 1. | Record the following freeze data.
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| 2. | Do the DTC CLEAR in the CLEAR MENU with the HDS. |
| 3. | Start the engine with no load (in neutral), then let it idle. |
| 4. | Monitor the OBD STATUS for DTC P0301, P0302, P0303 or P0304 in the DTCs MENU with the HDS. Is it FAILED? YES - Go to Do the ETCS learn procedure. |
| 18. | Test-drive the vehicle for several minutes in the range of the recorded freeze data. |
| 19. | Check for Temporary DTCs or DTCs in the DTCs MENU with the HDS. Are any Temporary DTCs or DTCs indicated? YES - If DTC P0300, P0301, P0302, P0303 or P0304 is indicated, check for poor connections or loose terminals at the ignition coil, the injector, and the ECM, then go to troubleshooting DTC P0301, P0302, P0303 or P0304. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC troubleshooting. NO - Go to 20. |
| 20. | Monitor the OBD STATUS for DTC P0301, P0302, P0303 or P0304 in the DTCs MENU with the HDS. Is it PASSED? YES - Troubleshooting is complete.n NO - If it is FAILED, then go to 1 and recheck. If it is EXECUTING, keep the driving condition continually until a result comes on. If it is Out of CONDITION, go to 18 and recheck. |
