P1694

What does P1694 mean?

P-code P1694 means "Oil Pressure Control Solenoid Circuit Malfunction". It is a manufacturer-specific diagnostic trouble code (DTC) in the powertrain. The pressure reading from the oil pressure control solenoid circuit malfunction is outside the expected operating range. This warning should be addressed within the next few days to avoid further damage. This code applies to OBD-II compliant electric and hybrid vehicles.

Possible Causes

• Faulty pressure sensor or damaged sensor connector
• Fluid leak causing lower-than-expected pressure readings
• Blocked pressure port or contaminated sensing element
• Pump or actuator failure affecting system pressure

Recommended Actions

1. 1 Avoid aggressive driving and schedule a diagnostic appointment within the next 1–3 days
2. 2 Scan for all DTCs with an OBD-II scanner — note any related codes stored alongside P1694
3. 3 Inspect the powertrain component and its wiring for visible damage
4. 4 Check for water intrusion in connector areas and clean contacts if corroded
5. 5 Clear the DTC, road-test the vehicle, and re-scan to confirm whether the fault returns
6. 6 If the fault persists after inspection and clearing, consult an EV-certified technician for component replacement

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