OBD Guide

P07BF

Input/Turbine Shaft Speed Sensor A Circuit Low

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

Symptoms

  • Incorrect gear shifting
  • Transmission transition to emergency mode
  • Increased fuel consumption
  • Check engine light comes on
  • Reduced vehicle dynamics

Causes

  • Turbine speed sensor malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Wiring harness damage
  • Problems with the transmission control unit

How to Fix

  1. Check the integrity of the sensor circuit
  2. Inspect connectors and contacts for corrosion or damage
  3. Check sensor resistance (compare with factory values)
  4. Replace turbine speed sensor if necessary
  5. Reset the error code and test drive

Related codes

Error P07BF by Vehicle Brand