Does P3001 mean the exhaust pressure sensor is bad?

No. On Mercedes-Benz, P3001 means the module sees the exhaust pressure sensor circuit shorted to ground. A failed sensor can cause that, but harness damage causes it more often. Unplug the sensor and recheck the circuit for a grounded signal or reference. If the short remains with the sensor unplugged, the wiring or connector causes it.

What does the FTB suffix “-62” add to the diagnosis?

The -62 suffix links to the SAE J2012DA FTB table value 11, which identifies “Short to Ground.” That subtype steers your test plan. You should focus on finding an unintended ground path in the signal, reference, or shared sensor supply circuits. It also helps you avoid chasing an “open” or “no signal” fault pattern.

What should I check first to avoid replacing parts unnecessarily?

Start with a visual and hands-on harness inspection around hot exhaust sections and where the loom bends. Look for melted conduit, rub-through, and oil-soaked connectors. Next, unplug the sensor and check whether the short-to-ground persists at the harness side. If the short disappears unplugged, suspect the sensor or connector contamination causing a bridge to ground.

How do I verify the repair is complete for emissions readiness?

Clear the code only after repairs, then confirm the related OBD-II monitor runs to “Ready” or “Complete” on a scan tool. Clearing resets monitors to “Not Ready.” Drive the vehicle through the correct enable conditions so the ECM can recheck exhaust pressure plausibility. Enable criteria vary by Mercedes-Benz calibration, so follow service information for the proper drive cycle.

How long do I need to drive to confirm P3001 won’t return?

Prove it under the same conditions that set the fault. That usually means a full warm-up, steady cruise, and at least one higher-load event where exhaust flow increases. Watch live data for stable exhaust pressure response and no dropouts. The exact enable criteria and time vary by Sprinter configuration, so verify with Mercedes-Benz service procedures.

P3001 Mercedes-Benz – 'Exhaust pressure sensor' has a short

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B162A Left low beam fault - open circuit or short…
B162E Right low beam fault - open circuit or short…

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