DTC P0328: Notes
DTC P0328 DETECTION CONDITION AND POSSIBLE CAUSES
| DTC P0328 |
Knock sensor circuit high input |
| DETECTION CONDITION |
- PCM monitors input signal from knock sensor when engine is running. If input voltage is below 4.77 V , 4.9 V
, PCM determines that knock sensor circuit has malfunction.
Diagnostic support note
- This is a continuous monitor (CCM).
- MIL illuminates if PCM detects the above malfunction condition during first drive cycle.
- PENDING CODE is available if PCM detects the above malfunction condition.
- FREEZE FRAME DATA is available.
- DTC is stored in the PCM memory.
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| POSSIBLE CAUSE |
- Knock sensor malfunction
- Connector or terminal malfunction
- Short to power supply in wiring between knock sensor terminal A and PCM terminal 2U
- Short to power supply in wiring between knock sensor terminal B and PCM terminal 2V
- PCM malfunction
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 Courtesy of MAZDA MOTORS CORP.
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