# Service bulletin 08\-102\-20

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10187693
- Published by NHTSA: 2021\-03\-01
- Manufacturer's number: 08\-102\-20
- Manufacturer's date: 2020\-12\-08
- NHTSA component: ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL; EQUIPMENT; ELECTRICAL SYSTEM; SERVICE BRAKES, AIR:ANTILOCK

## NHTSA's summary

Flash: Anti\-Lock Brake System \(ABS\) Module Updates This bulletin involves reprogramming the ABS module with the latest available software. Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find that one of the following Diagnostic Trouble Code \(DTC\) has been set: B1783\-01 \- Stop Lamp Control \- General Electrical Failure. The customer may also comment or note that the DTC set after the installation of a Mopar or an aftermarket trailer brake controller.The 12 volt back feed of the aftermarket trailer brake controller into the redundant connection between the Body Control Module \(BCM\) and the Anti Lock Brake Module \(ABS\) is causing a design intent diagnostic detection of the stop lamps.Software enhancement includes:Removal of the warning lamp associated with this DTC so an aftermarket trailer brake controller can be used.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10187693-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10187693-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Brakes, Electrical system, Equipment and accessories, Anti\-lock brakes

## Trouble codes named

B1783

## Vehicles listed

- 2020 JEEP GLADIATOR

## Other bulletins for the same vehicles and component

- [S2208000085](/bulletins/10229090.md), 2023-01-09, Service bulletin: ELECTRICAL SYSTEM; SERVICE BRAKES, AIR:ANTILOCK:CONTROL UNIT/MODULE; ENGINE AND ENGINE COOLING. No Start, ABS Module Has No Communication, Stop/Start Inoperative

JSON: [/v1/bulletins/10187693](/v1/bulletins/10187693)

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