P024A

Charge Air Cooler Bypass Control A Range/Performance

Q: Is it safe to drive with P024A?

Generally yes. This is a low-severity performance code affecting intake-air temperature control, not a fault that strands you. Still, get it repaired to restore efficiency.

Q: Can I just clear P024A?

It will return if the bypass valve or actuator still can't reach its commanded position. The mechanical or electrical cause needs fixing.

Turbo / boost & charge-air cooling Generic OBD-II Low

What it means

P024A means the charge-air-cooler (intercooler) bypass control 'A' isn't performing within its expected range — the module commands the bypass valve to a position but the feedback doesn't match. This bypass manages how much intake air is routed around the cooler to regulate charge temperature, so a fault mainly affects efficiency and performance rather than leaving you stranded.

Low

Can I keep driving? Usually safe to keep driving — it affects intake-air temperature control, so you may notice slightly reduced efficiency or performance rather than a breakdown.

Real-world scan data

Seen in

scans in the past year

Found in

<0.1%

of scans

<0.1%

of scans that found faults

Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.

Common symptoms

What you'll notice

Check-engine light on
Slightly reduced performance or fuel economy
Poor cold-weather warm-up behavior (if the bypass is meant to warm intake air)
Often no noticeable driving symptom

Common causes

Most likely first

Charge-air-cooler bypass valve or flap sticking, binding, or seizedLikely
Carbon or soot buildup restricting valve travelCommon
Faulty bypass actuator or control motorCommon
Damaged wiring or a poor connector at the bypass actuatorLess often
Control-circuit fault preventing the valve from reaching its commanded positionLess often

How to diagnose & fix

Work through it in order

Read freeze-frame data and note the commanded versus actual bypass position.
Inspect the charge-air-cooler bypass valve/flap for binding, carbon buildup, or seizing.
Check the actuator and its wiring/connector for damage or corrosion.
Command the actuator with a scan tool and confirm it moves through its full range.
Replace the actuator or bypass valve if it fails to respond, then clear and re-test.

FAQ

Quick answers

Is it safe to drive with P024A?+

Generally yes. This is a low-severity performance code affecting intake-air temperature control, not a fault that strands you. Still, get it repaired to restore efficiency.

Can I just clear P024A?+

It will return if the bypass valve or actuator still can't reach its commanded position. The mechanical or electrical cause needs fixing.

Read & clear P024A yourself

Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.

▶ Get it on Google Play

✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX