P2533 Fault Code

Ignition Switch Run/Start Position Circuit

• What does that mean?
• Symptoms
• Causes
• Solutions

The P2533 fault code indicates an issue with the ignition switch run/start position circuit. This circuit is crucial for proper operation as it helps regulate the power supplied to various systems in the vehicle when starting or running. If the circuit is faulty, it can lead to a range of ignition-related issues.

What are the symptoms of the P2533 code?

When dealing with a P2533 fault code, drivers may experience:

• Difficulty starting the vehicle or the engine failing to turn over.
• Engine stalling or shutting off unexpectedly while driving.
• Warning lights on the dashboard, particularly the check engine light.
• Other electrical accessories may not function as intended due to power supply issues.

What causes the P2533 code?

The most common causes of the P2533 fault code include:

• A worn or faulty ignition switch that fails to connect properly.
• Damaged wiring or connectors in the ignition switch circuit.
• Poor electrical contacts that result in intermittent signal loss.
• Issues with the vehicle's powertrain control module (PCM) that misinterpret the ignition switch signal.

How to fix P2533?

To resolve the P2533 fault code, consider the following steps:

• Inspect and test the ignition switch for proper function; replace it if defective.
• Check the wiring and connectors for any signs of damage or corrosion, repairing or replacing as necessary.
• Use a multimeter to test the continuity of the ignition switch circuit.
• If all else fails, reprogram or replace the powertrain control module to ensure it correctly interprets signals from the ignition switch.