# Service bulletin 9004311

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: 10183000
- Published by NHTSA: 2020\-11\-30
- Manufacturer's number: 9004311
- Manufacturer's date: 2020\-10\-21
- NHTSA component: WHEELS; SERVICE BRAKES, AIR:ANTILOCK:WHEEL SPEED SENSOR

## NHTSA's summary

SENSOR, Wheel Speed Please call FCA Redacted Content prior to replacing a rear wheel speed sensor for one of the following fault codes: C003A\-1D and or 2F \(right rear wss circuit current out of range or signal erratic\) C0037\-1D and or 2F \(left rear wss circuit current out of range or signal erratic\) If no response in 15 minutes, proceed with repair.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10183000-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10183000-9999.pdf)

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

## Components

Brakes, Wheels, Anti\-lock brakes, Wheel speed sensor

## Trouble codes named

C0037, C003A

## Vehicles listed

- 2020 to 2021 JEEP WRANGLER

## Other bulletins for the same vehicles and component

- [S2008000085RevA](/bulletins/10223917.md), 2022-10-17, Service bulletin: SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT. ABS, ESC Lamp On, Red Brake Lamp Flashing
- [0810621](/bulletins/10212493.md), 2022-05-31, Service bulletin: ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY; SERVICE BRAKES, AIR:ANTILOCK:WHEEL SPEED SENSOR; EQUIPMENT. 12V Battery Low Charge This bulletin involves testing and possibly replacing the 12V battery. Technicians or customers may experience a Malfunction Indicator Lamp MIL illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes DTCs have been set: U3007\-00 \- Control Module Input Power "B" Circuit/Open. C2100\-00 \- Battery Voltage Low. C05A4\-00 \- Wheel Speed Sensors Supply Circuit Low. C2129\-00 \- Battery Voltage. U3006\-00 \- Control Module Input Power "A" Circuit/Open. B2199\-16 \- Battery Voltage\-Circuit Voltage Below Threshold. B21DD\-84 \- System Voltage\-Signal Below Allowable Range. B2199\-16 \- Battery Voltage\-Circuit Voltage Below Threshold. Technicians or customers may also experience one or more of the following:Depleted 12V battery at delivery to dealer. Vehicle will not start.
- [S2008000085 Rev.](/bulletins/10183028.md), 2020-11-30, Service bulletin: SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT; EXTERIOR LIGHTING:BRAKE LIGHTS. ABS, ESC Lamp On, Red Brake Lamp Flashing

JSON: [/v1/bulletins/10183000](/v1/bulletins/10183000)

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