Code result
P2533
Ignition Switch On/Start Position Circuit
Moderate severity
What it means
General electrical fault on the ignition switch On/Start (terminal 50 / crank) input. The ECM uses this signal to know when the starter is energised — without it the ECM cannot raise fuel and timing for cranking, the engine struggles to start or stalls right after.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Open or shorted On/Start wire
highOne of the most commonly reported causes for this code — check this first.
Related help
Get the full diagnosis
Add your vehicle and see step-by-step repair help, recalls, and TSBs in Wrenchify.
Diagnose P2533 freeNo credit card required