# Service bulletin 21\-038\-15 REV. A

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: 10216159
- Published by NHTSA: 2022\-07\-25
- Manufacturer's number: 21\-038\-15 REV. A
- Manufacturer's date: 2015\-10\-08
- NHTSA component: ELECTRICAL SYSTEM; EQUIPMENT; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\):SOFTWARE

## NHTSA's summary

Flash: Drivetrain Control Module \(DTCM\) C2020\-01 ECU Internal Fault setting in the DTCM This bulletin involves reprogramming the Drivetrain Control Module \(DTCM\) with the latest available software. Some vehicles may experience the All Wheel Drive Light \(AWD\) illuminating due to DTC C2020\-01 ECU Internal Fault setting erroneously in the DTCM.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2015/MC-10216159-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2015/MC-10216159-9999.pdf)

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

## Components

Electrical system, Engine, Equipment and accessories, Engine control module

## Trouble codes named

C2020

## Vehicles listed

- 2016 FIAT 500
- 2015 JEEP RENEGADE

## Other bulletins for the same vehicles and component

- [21\-048\-15 REV. A](/bulletins/10216158.md), 2022-07-25, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\):SOFTWARE. Flash: Drivetrain Control Module C2020\-01 ECU Internal Fault setting in the DTCM This bulletin involves reprogramming the Drivetrain Control Module \(DTCM\) with the latest available software. Some vehicles may experience the All Wheel Drive Light \(AWD\) illuminating due to DTC C2020\-01 ECU Internal Fault setting erroneously in the DTCM.
- [0810915](/bulletins/10215093.md), 2022-07-05, Service bulletin: WHEELS; ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\):SOFTWARE. This bulletin involves inspecting and replacing the Comfort Seat and Wheel Module
- [0801416](/bulletins/10215059.md), 2022-07-05, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\). This bulletin involves reprogramming the Instrument Panel Cluster \(IPC\) with the latest

JSON: [/v1/bulletins/10216159](/v1/bulletins/10216159)

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