# C1B84 on the 2018 Nissan Leaf

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 C1B84

- [10144520](https://open.wenmarpro.com/bulletins/10144520), 2018-09-17: 2018 LEAF; MALFUNCTION AND AEB WARNING LIGHTS ON IF YOU CONFIRM Malfunction and Automatic Emergency Braking \(AEB\) warning lights are ON with DTCs: \- C1B84\-00 ? \(DIST SEN MALFUNCTION\) \- C1A17\-49 ? \(CONTROL UNIT \(INTERNAL ELECTRONIC ERROR\)\) ACTION 1. Install the new Distance Sensor. 2. Add a foam strip to the new Distance Sensor. 3. Perform Radar Alignment. IMPORTANT: The purpose of ACTION \(above\) is to give you a quick idea of the work youwill be performing. You MUST closely follow the entire SERVICE PROCEDURE as it contains information that is essential to successfully completing this repair.