OBD Guide

P0EF5

Drive Motor C Temperature Sensor Circuit Intermittent/Erratic

P0EF5 is an OBD-II diagnostic trouble code meaning: Drive Motor C Temperature Sensor Circuit Intermittent/Erratic. Common causes: poor contact in the sensor connector, 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

  • Unstable engine operation
  • Increased fuel consumption
  • Check Engine light comes on
  • Reduced engine power
  • Possible engine overheating

Causes

  • Poor contact in the sensor connector
  • Open or short circuit in the sensor circuit
  • Temperature sensor malfunction
  • Problems with the engine control unit
  • Contact corrosion

How to Fix

  1. Check the continuity of the temperature sensor circuit
  2. Check the contacts in the sensor connector
  3. Replace temperature sensor if necessary
  4. Check the engine control unit for errors
  5. Clean contacts from corrosion

Related codes

Error P0EF5 by Vehicle Brand

FAQ

What does the P0EF5 code mean?

P0EF5 is an OBD-II diagnostic trouble code that indicates: Drive Motor C Temperature Sensor Circuit Intermittent/Erratic

What causes a P0EF5 error code?

The most common causes of P0EF5 include: Poor contact in the sensor connector; Open or short circuit in the sensor circuit; Temperature sensor malfunction; Problems with the engine control unit.

How do I fix a P0EF5 diagnostic trouble code?

To fix P0EF5: Check the continuity of the temperature sensor circuit. Check the contacts in the sensor connector. Replace temperature sensor if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0EF5?

Limited driving only, diagnose soon

How much does it cost to fix P0EF5?

The estimated repair cost for P0EF5 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat