OBD Guide

P2535

Ignition Switch On/Start Position Circuit High

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$17–89 (est.)

Symptoms

  • Engine won't start
  • Problems turning the ignition key
  • Check Engine Light Is On
  • Intermittent engine operation
  • The car stalls while driving

Causes

  • Ignition switch malfunction
  • Short circuit in the circuit
  • Wiring harness damage
  • Ignition relay malfunction
  • Problems with the engine control unit (ECU)

How to Fix

  1. Check the condition of the ignition switch
  2. Inspect the wiring harness for damage
  3. Check ignition relay
  4. Diagnose the engine control unit (ECU)
  5. Replace faulty components

Related codes

Error P2535 by Vehicle Brand