P024C
Charge Air Cooler Bypass Position Sensor A Circuit
Turbo/boost control
Generic OBD-II
Low
What it means
P024C means the engine controller has detected a circuit problem with the position sensor that reports where the charge air cooler bypass is set. That bypass helps control the temperature of the compressed intake air on a turbo/supercharged engine. Without a valid position signal, the ECM logs the fault. It's normally a sensor or wiring issue and doesn't affect everyday driving.
Low
Can I keep driving? Yes — the car drives normally; you may notice slightly softer performance under hard load until it's fixed.
Common symptoms
What you'll notice
- Check-engine light on
- Often no noticeable driving symptoms
- Possible slight loss of performance under heavy load
Common causes
Most likely first
- Failed charge air cooler bypass position sensor ALikely
- Damaged wiring or a poor connection in the sensor circuitCommon
- Loose or corroded connector at the sensorCommon
- Failed engine control module (least likely)Less often
How to diagnose & fix
Work through it in order
- Scan for related charge-air or boost codes and read freeze-frame data.
- Inspect the position sensor connector and wiring for corrosion, chafing, or loose pins.
- Confirm the sensor has reference voltage and ground, then compare its output to the actuator position.
- Replace the position sensor if it reads out of range; repair wiring first. Clear and re-test.
FAQ
Quick answers
Is it safe to drive with P024C?+
Yes. This is an emissions/performance circuit fault rather than a safety problem, but fix it so charge-air management works correctly.
Can I just clear P024C?+
It will return until the sensor or its wiring is repaired. Fix the circuit first, then clear it.
Related codes
Often seen with P024C
Read & clear P024C yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX