Powertrain
generic / SAE
P2533
Ignition Switch On/Start Position Circuit
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.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number5 / 33
Possible causes
- Open or shorted On/Start wire high
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 80–500 €
- Estimated time: 0.5–2 h
- Component: ignition switch
- Component: wiring harness
- MIL / check engine light
Sources
References
sae:J2012