OBD-II code · Powertrain (generic)
P047D Exhaust Pressure Sensor B Circuit High
Exhaust pressure sensor B above upper plausibility — open signal or short to B+. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
Is it safe to drive with P047D?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyOpen signal line
- Less likelyConnector pins corroded - high contact resistance
- Less likelySupply wire pinched against B+ source
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–2.5 h
- Emissions test
- Likely to fail
- Parts involved
- Exhaust Pressure Sensor
Related codes
- P0473Exhaust Pressure Sensor A Circuit High
- P047AExhaust Pressure Sensor B Circuit
- P047BExhaust Pressure Sensor B Circuit Range/Performance
- P047CExhaust Pressure Sensor B Circuit Low
- P047EExhaust Pressure Sensor B Circuit Intermittent/Erratic
- P047FExhaust Pressure Control Valve A Stuck Open
- P0480Cooling Fan 1 Control Circuit
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.