P2538 Possible Causes
- Faulty ignition switch
- Ignition switch harness is open or shorted
- Poor electrical connection in ignition switch circuit
How to Fix Code P2538
Check the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
Check engine light illuminated (or service engine soon warning light)
P2538 Meaning
The Powertrain Control Module (PCM) monitors the accessory position signal from the ignition switch. The PCM sets the OBDII code when the ignition switch accessory position signal is outside factory specifications.