OBD-II code · Powertrain (generic, extended)
P2169 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.
Is it safe to drive with P2169?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySolenoid winding open
- Less likelyPin pushed back out of connector body
- Less likelyCracked solder joint inside the module or sensor
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.7–2.5 h
- Emissions test
- Likely to fail
- Parts involved
- Exhaust Pressure Regulator, Exhaust Brake
Related codes
- P2166Throttle/Pedal Position Sensor D Maximum Stop Performance
- P2167Throttle/Pedal Position Sensor E Maximum Stop Performance
- P2168Throttle/Pedal Position Sensor F Maximum Stop Performance
- P216AFuel Injector Group E Supply Voltage Circuit/Open
- P216BFuel Injector Group E Supply Voltage Circuit Low
- P216CFuel Injector Group E Supply Voltage Circuit High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.