P010C

Mass or Volume Air Flow Sensor B Circuit Low

Q: Is it safe to drive with P010C?

It's drivable but not ideal — because the MAF is a main fueling input, the engine may hesitate, stall, or enter limp mode. Fix it soon to avoid being stranded.

Q: Can I just clear P010C?

It returns quickly. A low MAF signal usually means a wiring or sensor fault that has to be repaired before the code stays off.

Fuel & air metering Generic OBD-II High

What it means

P010C means the "B" mass air flow sensor circuit is reading an abnormally low signal — typically a wiring short to ground, an open circuit, or a failed sensor. The MAF tells the ECM how much air the engine is drawing, so a bad low reading can throw off fueling and cause hesitation, stalling, or a drop into limp mode.

High

Can I keep driving? You can usually still drive, but expect hesitation, stalling, or a drop into limp mode; fix it before it strands you.

Real-world scan data

Seen in

112

scans in the past year

Found in

<0.1%

of scans

<0.1%

of scans that found faults

Appears alongside · share of P010C scans

P0102in 54.5% of scans

P064Din 44.6% of scans

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
Hesitation, rough running, or lack of power
Hard starting or stalling
Reduced fuel economy or limp/failsafe mode

Common causes

Most likely first

Mass air flow sensor B signal circuit shorted to ground or wiring openLikely
Faulty mass air flow sensorCommon
Corroded or loose connector at the MAF sensorCommon
Intake air leak affecting the sensor readingLess often
Faulty ECM/PCM (rare)Less often

How to diagnose & fix

Work through it in order

Read freeze-frame data and inspect the MAF connector and wiring for shorts, opens, or corrosion.
Check the sensor's signal voltage against the manufacturer's spec on a scan tool.
Inspect for intake leaks and confirm a clean, correctly seated air filter.
Clean or replace the MAF sensor if it reads out of range; repair the wiring.
Clear and retest; consider the ECM only as a last resort.

FAQ

Quick answers

Is it safe to drive with P010C?+

It's drivable but not ideal — because the MAF is a main fueling input, the engine may hesitate, stall, or enter limp mode. Fix it soon to avoid being stranded.

Can I just clear P010C?+

It returns quickly. A low MAF signal usually means a wiring or sensor fault that has to be repaired before the code stays off.

Read & clear P010C 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