OBD Guide

P1194

Throttle Actuator Control System Limp Home-Throttle Position Sensor 2 Position Malfunction

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Engine transition to emergency mode
  • Reduced engine power
  • Unstable idle speed
  • Check Engine Light Illuminates
  • Acceleration problems

Causes

  • Throttle Position Sensor 2 Malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Mechanical damage to the throttle assembly
  • Problems with the engine ECU

How to Fix

  1. Check the condition of the sensor and its connector
  2. Check the sensor circuit for open and short circuit
  3. Check the sensor resistance (compare with the norm)
  4. Clean the throttle body if necessary
  5. Replace the sensor if a fault is detected

Related codes

Error P1194 by Vehicle Brand