OBD Guide

P2535

Ignition Switch On/Start Position Circuit High

P2535 is an OBD-II diagnostic trouble code meaning: Ignition Switch On/Start Position Circuit High. Common causes: ignition switch malfunction, short circuit in the circuit. Estimated repair cost: $17–89.

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

FAQ

What does the P2535 code mean?

P2535 is an OBD-II diagnostic trouble code that indicates: Ignition Switch On/Start Position Circuit High

What causes a P2535 error code?

The most common causes of P2535 include: Ignition switch malfunction; Short circuit in the circuit; Wiring harness damage; Ignition relay malfunction.

How do I fix a P2535 diagnostic trouble code?

To fix P2535: Check the condition of the ignition switch. Inspect the wiring harness for damage. Check ignition relay. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2535?

Do not drive — repair immediately

How much does it cost to fix P2535?

The estimated repair cost for P2535 is $17–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat