OBD Guide

P2D90

Engine Oil Pressure Sensor/Switch C Circuit High

P2D90 is an OBD-II diagnostic trouble code meaning: Engine Oil Pressure Sensor/Switch C Circuit High. Common causes: oil pressure sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Check Engine Light Is On
  • Unstable oil pressure readings on the dashboard
  • Possible engine noise due to insufficient lubrication
  • Reduced engine power
  • In some cases - emergency engine operation

Causes

  • Oil pressure sensor malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Wiring Harness Problems
  • Engine control unit malfunction

How to Fix

  1. Check the condition of the oil pressure sensor
  2. Inspect the sensor circuit for damage
  3. Check connectors and contacts
  4. Test sensor resistance
  5. If necessary, replace the oil pressure sensor

Related codes

Error P2D90 by Vehicle Brand

FAQ

What does the P2D90 code mean?

P2D90 is an OBD-II diagnostic trouble code that indicates: Engine Oil Pressure Sensor/Switch C Circuit High

What causes a P2D90 error code?

The most common causes of P2D90 include: Oil pressure sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Wiring Harness Problems.

How do I fix a P2D90 diagnostic trouble code?

To fix P2D90: Check the condition of the oil pressure sensor. Inspect the sensor circuit for damage. Check connectors and contacts. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2D90?

Limited driving only, diagnose soon

How much does it cost to fix P2D90?

The estimated repair cost for P2D90 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat