# C147B on the 2018 Jeep Wrangler

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.

This code is specific to a manufacturer and is not described here.

## Bulletins for this model year that name C147B

- [11038523](https://open.wenmarpro.com/bulletins/11038523), 2026-10-16: Flash: Drivetrain Control Module \(DTCM\) Updates Customers must experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle must SYMPTOM: exhibit/set the following Diagnostic Trouble Code \(DTC\): ● C147B\-92 \- Front Axle Disconnect Sensor Performance or Incorrect Operation Customers may comment on one or more of the following: ● 4WD system warning lights, service messages, or flashing indicators are displayed in the Instrument Panel Cluster \(IPC\). ● The vehicle does not engage 4WD properly. This bulletin involves reprogramming the DTCM with the latest available software.
- [11038486](https://open.wenmarpro.com/bulletins/11038486), 2026-10-16: Flash: Drivetrain Control Module \(DTCM\) Updates Customers must experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle must SYMPTOM: exhibit/set the following Diagnostic Trouble Code \(DTC\): ● C147B\-92 \- Front Axle Disconnect Sensor Performance or Incorrect Operation Customers may comment on one or more of the following: ● 4WD system warning lights, service messages, or flashing indicators are displayed in the Instrument Panel Cluster \(IPC\). ● The vehicle does not engage 4WD properly. This bulletin involves reprogramming the DTCM with the latest available software.
- [10175466](https://open.wenmarpro.com/bulletins/10175466), 2020-05-26: 4WD Lamp On, Service 4WD System, DTC C147B\-14 Front Axle Disconnect Sensor\-Circuit Short To Ground Or Open
- [10175054](https://open.wenmarpro.com/bulletins/10175054), 2020-05-18: 4WD Lamp On, Service 4WD System, DTC C147B\-14 Front Axle Disconnect Sensor\-Circuit Short To Ground Or Open
- [10174134](https://open.wenmarpro.com/bulletins/10174134), 2020-04-27: 4WD Lamp On, Service 4WD System, DTC C147B\-14 Front Axle Disconnect Sensor\-Circuit Short To Ground Or Open