OBD Guide

P2741

Transmission Fluid Temperature Sensor B Circuit Range/Performance

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

Symptoms

  • Incorrect gear shifting
  • Check engine light comes on
  • Reduced transmission efficiency
  • Possible emergency operation of the transmission
  • Increased fuel consumption

Causes

  • Transmission Fluid Temperature Sensor B Malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Low transmission fluid level
  • Contaminated transmission fluid

How to Fix

  1. Check the level and condition of the transmission fluid
  2. Visually inspect the sensor wiring and connectors
  3. Check sensor resistance at different temperatures
  4. Replace transmission fluid temperature sensor B if necessary
  5. Clear error codes and check if the fault returns

Related codes

Error P2741 by Vehicle Brand