Code Definition

P1692 — Oil Control Valve Opening Malfunction

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

About P1692

P1692 is a manufacturer-specific powertrain diagnostic trouble code recorded for Toyota vehicles. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

When P1692 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.

P1692 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

This code relates to the mechanical and hydraulic operation of the Variable Valve Timing system on Toyota engines, rather than the electrical circuit. The Oil Control Valve (OCV) directs engine oil to the camshaft timing actuator to advance or retard valve timing. The Engine Control Module (ECM) commands the OCV to open and then confirms the change using the camshaft position sensor. DTC P1692 sets when the ECM commands the OCV to open but the actual camshaft position does not change as expected, indicating the valve, oil supply, or actuator is not responding mechanically even though the circu...

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