Code Definition

P1008 — Variable Valve Timing (VVT) Solenoid Valve Circuit Open

System: Powertrain  |  Type: Manufacturer-Specific  |  Make: Mazda

About P1008

P1008 is a manufacturer-specific powertrain diagnostic trouble code recorded for Mazda vehicles. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

When P1008 is stored, the module has detected an open (broken or disconnected) electrical path in the monitored circuit.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

P1008 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

The Powertrain Control Module (PCM) controls and monitors the Variable Valve Timing (VVT) oil control solenoid to adjust camshaft timing according to engine operating conditions. DTC P1008 is set when the PCM detects an open circuit or no electrical response in the VVT solenoid control circuit, identified when commanded operation does not produce the expected change in circuit voltage or current flow. The solenoid is a PCM driven valve that directs engine oil pressure to the camshaft phaser to advance or retard timing. When this code is set the driver may notice rough idle, reduced power, poor...

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