OBD Guide

P1135

Pedal Position Sensor A Circuit Intermittent

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

Symptoms

  • Unstable engine operation when pressing the gas pedal
  • Delayed response to pressing the accelerator pedal
  • Spontaneous change in engine speed
  • Check Engine Light Illuminates
  • Switching to emergency engine operation mode

Causes

  • Damage to sensor wiring or connectors
  • Pedal position sensor malfunction
  • Short circuit or open circuit
  • Circuit Grounding Problems
  • Engine ECU malfunction

How to Fix

  1. Check the integrity of wiring and connectors
  2. Test the resistance of the pedal position sensor
  3. Check the voltage in the sensor circuit
  4. Replace the pedal position sensor if necessary
  5. Calibrate the system after repair

Related codes

Error P1135 by Vehicle Brand