# P050B on the 2012 Jeep Compass

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

Nobody has written a description of this code yet.

## Bulletins for this model year that name P050B

- [10216272](https://open.wenmarpro.com/bulletins/10216272), 2022-07-25: Flash: MIL Illumination P050B and/or Rattle/Clatter Sound on Cold Start\-up This bulletin involves installing revised heater hoses, routing the purge solenoid wire harness, and installing revised Powertrain Control Module \(PCM\) software. Customers may indicate that they hear a clatter or rattle noise coming from the engine on initial start up after a long cold soak. A small number of customers may also experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Code \(DTC\) has been set. P050B \- Cold Start Ignition Timing Performance
- [10136482](https://open.wenmarpro.com/bulletins/10136482), 2018-05-14: Flash: MIL Illumination P050B and/or Rattle/Clatter Sound on Cold Start\-up This bulletin involves installing revised heater hoses, routing the purge solenoid wire harness, and installing revised Powertrain Control Module \(PCM\) software. Customers may indicate that they hear a clatter or rattle noise coming from the engine on initial start up after a long cold soak. A small number of customers may also experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Code \(DTC\) has been set. P050B \- Cold Start Ignition Timing Performance
- [10128986](https://open.wenmarpro.com/bulletins/10128986), 2018-02-21: Flash: MIL Illumination P050B and/or Rattle/Clatter Sound on Cold Start\-up This bulletin involves installing revised heater hoses, routing the purge solenoid wire harness, and installing revised Powertrain Control Module \(PCM\) software. Customers may indicate that they hear a clatter or rattle noise coming from the engine on initial start up after a long cold soak. A small number of customers may also experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Code \(DTC\) has been set. P050B \- Cold Start Ignition Timing Performance