DTC P2305-00: Ion Sensor No. 2 Circuit Problem: Notes
WARNING: This page is about a different car, the 2016 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.
| DTC P2305:00 |
Ion sensor No. 2 circuit problem |
| DETECTION CONDITION |
- After the engine is started, when the engine speed is 2, 000 rpm or less,
the signal input to the PCM from ion sensor No. 2 is in error.
Diagnostic support note
- This is a continuous monitor (other).
- The check engine light does not illuminate.
- FREEZE FRAME DATA (Mode 2)/Snapshot data is not available.
- DTC is stored in the PCM memory.
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| FAIL-SAFE FUNCTION |
Not applicable |
| POSSIBLE CAUSE |
- Cylinder No. 2 misfire
- Ignition coil/ion sensor No. 2 connector or terminals malfunction
- Short to ground or open circuit in ion sensor No. 2 power supply circuit
- Short to ground in wiring harness between ENGINE2 15 A fuse and ignition coil/ion sensor No. 2 terminal A
- ENGINE2 15 A fuse malfunction
- Open circuit in wiring harness between main relay terminal C and ignition coil/ion sensor No. 2 terminal A
- Open circuit in wiring harness between ignition coil/ion sensor No. 2 terminal D and body ground
- Short to ground in wiring harness between ignition coil/ion sensor No. 2 terminal C and PCM terminal 1BF
- PCM connector or terminals malfunction
- Short to power supply in wiring harness between ignition coil/ion sensor No. 2 terminal C and PCM terminal 1BF
- Open circuit in wiring harness between ignition coil/ion sensor No. 2 terminal C and PCM terminal 1BF
- Ion sensor No. 2 malfunction
- PCM malfunction
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