What it means
The ignition switch run-position circuit signal is above the expected limit. The code does not establish the switch state or resulting behavior.
At a glance
- Usually lights the check-engine light
How it works
The ignition switch run-position input signals whether the vehicle's ignition is in the run state. The control module sets P2532 when this input is above its expected limit; a wire shorted to battery voltage or a pinched supply wire can keep the run signal high even when it should not be.
Common causes
Most likely first.
- Run input wire shorted to battery voltage
- Connector pins corroded - high contact resistance
- Supply wire pinched against B+ source
Symptoms
- Check-engine or electrical-system warning light
- Accessories may remain powered with ignition off
- Starting or engine operation may be inconsistent
How to diagnose it
- Review freeze-frame and related electrical codes to see whether the high run input occurred with the ignition on or off.
- Check whether accessories remain powered after the ignition is switched off and note any inconsistent starting or engine operation.
- Inspect the ignition switch connector and run-input harness for corrosion, pinched insulation, or contact with a battery-voltage source.
- Use the wiring diagram to measure the run input in each switch position and check for a short to battery voltage against the manufacturer's specification.
- If the harness is sound, test the ignition switch contacts and connector for a voltage feed when the run circuit should be off.
Common fixes
- Repair a run-input wire shorted to battery voltage.
- Free or repair a pinched wire contacting a B+ source.
- Clean or repair corroded ignition switch connector terminals.
- Replace a faulty ignition switch if its contacts feed the run input incorrectly.
Can I keep driving?
If accessories stay powered with the ignition off, the battery may discharge; inconsistent engine operation can also lead to a stall. Avoid driving if the engine cuts out, and address the fault before relying on the vehicle.
A code shows where the control module detected a fault, not always which part failed. Check the causes in order and confirm with a test before replacing parts. Have several codes? Check them together
This is a generic code: it means the same on every make. The car’s maker may add more detail in its own service information.