DTC P2091-00: OCV Circuit High Input: Notes
DTC P2091:00 DETECTION CONDITION AND POSSIBLE CAUSE
| DTC P2091:00 |
OCV circuit high input |
| DETECTION CONDITION |
- The OCV control voltage relative to the PCM control is too high. Diagnostic support note
- This is a continuous monitor (CCM).
- The check engine light illuminates if the PCM detects the above malfunction condition during the first drive cycle.
- FREEZE FRAME DATA/Snapshot data is available.
- DTC is stored in the PCM memory.
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| FAIL-SAFE FUNCTION |
- Set the exhaust variable valve timing control to the maximum advanced position.
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| POSSIBLE CAUSE |
- OCV connector or terminals malfunction
- PCM connector or terminals malfunction
- Short to power supply in wiring harness between OCV terminal A and PCM terminal 1AS
- OCV malfunction
- PCM malfunction
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 Courtesy of MAZDA MOTORS CORP.
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