P011C
Charge Air Cooler Temperature/Intake Air Temperature Correlation Bank 1
Air intake / temperature sensor
Generic OBD-II
Low
What it means
P011C means the charge air cooler (intercooler) temperature and the intake air temperature on Bank 1 don't agree the way the ECM expects — a rationality mismatch between two sensors that should read close to each other. It's a low-severity fault: the engine keeps running normally, but one of the sensors or its wiring should be corrected to keep fueling and boost-cooling accurate.
Low
Can I keep driving? Safe to drive — this is a temperature-sensor rationality check; expect at most minor fueling or boost-cooling effects, not a breakdown.
Common symptoms
What you'll notice
- Check-engine light on
- Often no noticeable driving symptom
- Charge-air or intake temperature readings that disagree on a scan tool
Common causes
Most likely first
- Faulty charge air cooler (intercooler) temperature sensorLikely
- Faulty intake air temperature sensor on Bank 1Common
- One sensor reading drifted or stuck out of rangeCommon
- Wiring or connector fault on either temperature sensor circuitLess often
- Poor ground or corroded terminal skewing a readingLess often
How to diagnose & fix
Work through it in order
- With the engine cold, compare the charge-air and intake air temperatures on a scan tool — they should read close to each other and to ambient.
- Identify which sensor is out of step with the rest.
- Inspect that sensor's connector and wiring for corrosion, damage, or a poor ground.
- Replace the sensor that reads incorrectly with sound wiring, then clear and re-test.
FAQ
Quick answers
Is it safe to drive with P011C?+
Yes. This code compares two air-temperature readings; a mismatch mainly affects fine fueling and boost-cooling logic, so drivability is usually normal. Fix it to keep those systems accurate.
Can I just clear P011C?+
It will return once the ECM re-checks the two sensors. Find and repair the drifting sensor or wiring first.
Related codes
Often seen with P011C
Read & clear P011C 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