OBD Guide

P1184

Engine Oil Temperature Out Of Self Test Range

P1184 is an OBD-II diagnostic trouble code meaning: Engine Oil Temperature Out Of Self Test Range. Common causes: malfunction of the engine oil temperature sensor, open or short circuit in the sensor circuit. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Check Engine Light Is On
  • Unstable engine operation
  • Reduced engine power
  • Increased fuel consumption
  • Incorrect oil temperature readings on the dashboard

Causes

  • Malfunction of the engine oil temperature sensor
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Low engine oil level
  • Engine ECU malfunction

How to Fix

  1. Check the level and condition of the engine oil
  2. Check the continuity of the oil temperature sensor circuit
  3. Check sensor connectors and connections
  4. Replace the engine oil temperature sensor if necessary
  5. Test and, if necessary, replace the engine ECU

Related codes

Error P1184 by Vehicle Brand

FAQ

What does the P1184 code mean?

P1184 is an OBD-II diagnostic trouble code that indicates: Engine Oil Temperature Out Of Self Test Range

What causes a P1184 error code?

The most common causes of P1184 include: Malfunction of the engine oil temperature sensor; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Low engine oil level.

How do I fix a P1184 diagnostic trouble code?

To fix P1184: Check the level and condition of the engine oil. Check the continuity of the oil temperature sensor circuit. Check sensor connectors and connections. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1184?

Yes, but get it checked soon

How much does it cost to fix P1184?

The estimated repair cost for P1184 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat