OBD-II code · Powertrain (generic)
P048E Exhaust Pressure Control Valve A Position Sensor/Switch Circuit High
Exhaust Pressure Control Valve A Position Sensor/Switch Circuit High: the signal voltage is above the expected range. Often an open circuit or a short to supply voltage.
Is it safe to drive with P048E?
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
- Best left to a mechanic
- Typical labour
- 0.5–2.5 h
- Emissions test
- Likely to fail
- Parts involved
- Exhaust Pressure Regulator
Related codes
- P048BExhaust Pressure Control Valve A Position Sensor/Switch Circuit
- P048CExhaust Pressure Control Valve A Position Sensor/Switch Circuit Range/Performance
- P048DExhaust Pressure Control Valve A Position Sensor/Switch Circuit Low
- P048FExhaust Pressure Control Valve A Position Sensor/Switch Circuit Intermittent/Erratic
- P0490EGR A Control Circuit High
- P0491Secondary Air Injection System Insufficient Flow (Bank 1)
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.