OBD Guide

P07C4

Input/Turbine Shaft Speed Sensor C Circuit High

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Incorrect gear shifting
  • Jerks when shifting gears
  • Transmission of the gearbox into emergency mode
  • Check engine light comes on
  • Reduced engine power

Causes

  • Faulty turbine shaft speed sensor C
  • Short circuit in the sensor circuit
  • Broken or damaged wiring harness
  • Problems with sensor connectors
  • Malfunction of the transmission control unit

How to Fix

  1. Check the integrity of the wiring harness and sensor connectors
  2. Check the resistance and signal of the turbine shaft speed sensor C
  3. Replace turbine shaft speed sensor C if necessary
  4. Check and repair damaged sections of the chain
  5. Reset the error and take a test drive

Related codes

Error P07C4 by Vehicle Brand