OBD Guide

P274C

Transmission Fluid Temperature Sensor C Circuit Low

P274C is an OBD-II diagnostic trouble code meaning: Transmission Fluid Temperature Sensor C Circuit Low. Common causes: transmission fluid temperature sensor fault c, 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

  • Incorrect gear shifting
  • Increased fuel consumption
  • Check engine light comes on
  • Reduced vehicle dynamics
  • Transmission fluid overheating

Causes

  • Transmission fluid temperature sensor fault C
  • Open or short circuit in the sensor circuit
  • Poor contact in sensor connectors
  • Transmission control module (TCM) problems
  • Contaminated or low transmission fluid level

How to Fix

  1. Check the level and condition of the transmission fluid
  2. Inspect the sensor circuit for damage
  3. Check sensor and TCM connectors for corrosion or poor contact.
  4. Test transmission fluid temperature sensor C
  5. If necessary, replace the sensor or repair the circuit

Related codes

Error P274C by Vehicle Brand

FAQ

What does the P274C code mean?

P274C is an OBD-II diagnostic trouble code that indicates: Transmission Fluid Temperature Sensor C Circuit Low

What causes a P274C error code?

The most common causes of P274C include: Transmission fluid temperature sensor fault C; Open or short circuit in the sensor circuit; Poor contact in sensor connectors; Transmission control module (TCM) problems.

How do I fix a P274C diagnostic trouble code?

To fix P274C: Check the level and condition of the transmission fluid. Inspect the sensor circuit for damage. Check sensor and TCM connectors for corrosion or poor contact.. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P274C?

Yes, but get it checked soon

How much does it cost to fix P274C?

The estimated repair cost for P274C is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat