DTC P0077: Notes
DTC P0077 DETECTION & CONDITION POSSIBLE CAUSES
| DTC P0077 |
VDI solenoid valve control circuit high |
| DETECTION CONDITION |
- The PCM monitors the VDI solenoid valve control voltage when the PCM turns the VDI solenoid valve on. If the control voltage is high, the PCM determines that the VDI solenoid valve control circuit voltage is high.
Diagnostic support note
- This is a continuous monitor (Other).
- The MIL does not illuminate.
- PENDING CODE is available if the PCM detects the above malfunction condition during the first drive cycle.
- FREEZE FRAME DATA is available.
- The DTC is stored in the PCM memory.
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| POSSIBLE CAUSE |
- VDI solenoid valve malfunction
- Connector or terminal malfunction
- Short to power supply in wiring harness between VDI solenoid valve terminal B and PCM terminal 1W
- PCM malfunction
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 Courtesy of MAZDA MOTORS CORP.
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