P047D — Exhaust Pressure Sensor B Circuit High

What Does P047D Mean?

P047D is a diagnostic trouble code indicating: Exhaust Pressure Sensor B Circuit High. This code relates to the emission controls system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

Symptoms of P047D

⚠️ Check Engine Light (MIL) illuminated
⚠️ Exhaust Pressure Sensor B reading stuck at maximum value
⚠️ Related system operating erratically or in default mode
⚠️ Failed emissions test

Common Causes

🔍 Short to voltage in Exhaust Pressure Sensor B wiring harness
🔍 Corroded or water-damaged Exhaust Pressure Sensor B connector
🔍 Faulty Exhaust Pressure Sensor B outputting maximum voltage
🔍 Damaged wiring rubbing against metal components
🔍 ECM/PCM internal fault (rare)

Frequently Asked Questions

What does P047D mean?

P047D indicates: Exhaust Pressure Sensor B Circuit High. The vehicle's computer has detected that the Exhaust Pressure Sensor B is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P047D?

Yes, P047D is generally safe to drive with in the short term. However, it should still be addressed to pass emissions testing and prevent potential secondary issues.

How much does it cost to fix P047D?

Repair costs for P047D typically range from $20 to $300, depending on the root cause. Simple wiring or connector repairs are on the lower end, while component replacement costs more. A proper diagnosis ($80–$150 at most shops) will identify the exact cause before committing to expensive parts.

What To Do Next

Possible Fixes

🔧 Inspect and repair Exhaust Pressure Sensor B wiring for short to voltage
🔧 Clean or replace corroded Exhaust Pressure Sensor B connector
🔧 Replace faulty Exhaust Pressure Sensor B

1
Find your vehicle above
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2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

P047D: Exhaust Pressure Sensor B Circuit High