Exhaust Pressure Regulator Vent Solenoid Control Circuit/Open
The drive circuit of the exhaust pressure regulator vent solenoid is open. The solenoid releases pressure from the exhaust backpressure regulator, which is part of the exhaust brake system on diesel trucks.
Affected components
- Exhaust pressure regulator
- Exhaust brake
Common causes
- High likelihood: Solenoid winding open
- Low likelihood: Pin pushed back out of connector body
- Low likelihood: Cracked solder joint inside the module or sensor
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.