P041D

EGR Temperature Sensor B Circuit High

Q: Is it safe to drive with P041D?

Yes — it's an emissions monitoring sensor. The main risk is failing an emissions test, so repair it before testing.

Q: Can I just clear P041D?

It returns while the wiring or sensor fault remains. Fix the circuit first.

EGR (emissions) Generic OBD-II Medium

What it means

P041D means the "B" EGR (exhaust gas recirculation) temperature sensor circuit is reading high — typically an open or a short to voltage. This sensor tracks recirculated-exhaust temperature for emissions control, so the fault mainly turns on the light and can cause an emissions-test failure, usually from wiring or the sensor rather than an engine problem.

Medium

Can I keep driving? Drivable — this is an emissions sensor, so the engine runs, but you may fail an emissions test and see occasional pinging under load.

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
Often no obvious drivability change
May fail an emissions/readiness test
Occasional pinging under load if EGR operation is affected

Common causes

Most likely first

Open circuit or short-to-voltage (high) in the EGR temperature sensor B wiringLikely
Corroded or disconnected connector at the sensorCommon
Faulty EGR temperature sensor BCommon
Poor sensor groundLess often
ECM fault (rare)Less often

How to diagnose & fix

Work through it in order

Inspect the EGR temp sensor B connector and wiring for an open or a short to voltage.
Check the sensor ground and supply.
Compare the sensor's resistance/reading to spec at known temperatures.
Replace the EGR temperature sensor if it reads out of range, then clear and re-test.

FAQ

Quick answers

Is it safe to drive with P041D?+

Yes — it's an emissions monitoring sensor. The main risk is failing an emissions test, so repair it before testing.

Can I just clear P041D?+

It returns while the wiring or sensor fault remains. Fix the circuit first.

Read & clear P041D 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