DTC P0020: Notes
DTC P0020 (MZI-3.5) DETECTION CONDITION AND POSSIBLE CAUSES
| DTC P0020 |
CMP actuator circuit open (LH) |
| DETECTION CONDITION |
- The PCM monitors the OCV (LH) circuit to the PCM for high and low voltage. The test fails if the voltage exceeds or falls below a calibrated limit for a calibrated amount of time.
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| POSSIBLE CAUSE |
- OCV (LH) malfunction
- Connector or terminal malfunction
- Open circuit between OCV (LH) terminal A and main relay No.1 terminal D
- Open circuit between OCV (LH) terminal B and PCM terminal 2BK
- Short to ground circuit between OCV (LH) terminal B and PCM terminal 2BK
- Short to power supply between OCV (LH) terminal B and PCM terminal 2BK
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 Courtesy of MAZDA MOTORS CORP.
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