# Service bulletin 18\-011\-17 REV. B

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: 10121806
- Published by NHTSA: 2017\-11\-03
- Manufacturer's number: 18\-011\-17 REV. B
- Manufacturer's date: 2017\-09\-21
- NHTSA component: ELECTRICAL SYSTEM:SOFTWARE

## NHTSA's summary

Flash: Powertrain Diagnostic and System Improvements This bulletin involves reprogramming the Powertrain Control Module \(PCM\) with the latest software. 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:P0703 \- Brake Switch 2 Performance. U0418 \- Invalid Data Received From Brake System Control Module. P0128\-00 \- Thermostat Rationality. P1185\-00 \- General Pressure Sensor Correlation. U1504\-00 \- Implausible Message Data Length Received From Steering Angle Sensor. In addition, the following software updates are available:Enhancements which allows the catalytic convertor to operate cooler. Change to reduce pressure fluctuations within the multi\-air solenoid.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2017/MC-10121806-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2017/MC-10121806-0001.pdf)

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

## Components

Electrical system, Software

## Trouble codes named

P0128, P0703, P1185, U0418, U1504

## Vehicles listed

- 2017 FIAT 500X

## Other bulletins for the same vehicles and component

- [18\-087\-17](/bulletins/10121817.md), 2017-11-03, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. Flash: Powertrain Diagnostic and System Improvements This bulletin involves reprogramming the Powertrain Control Module \(PCM\) 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 DTCs have been set:P1D7F \- ETC \(Electronic Throttle Control\) Self\-Learning Failure. P1524 \- Oil Pressure Out Of Range \- Camshaft Advance/Retard Disabled. P0000\-00 \- Will be displayed in the scan tool, but should really be displaying P0326\-00 \(Knock Sensor 1 Circuit Performance\). In addition, the customer may notice the following condition:Hard start condition, caused by spark plugs fouling.
- [21\-033\-17 REV. A](/bulletins/10121813.md), 2017-11-03, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. Flash: Transmission Diagnostic and Shift Enhancements This bulletin involves reprogramming the Transmission Control Module \(TCM\) with the latest available software. Customers may experience a \(MIL\) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes \(DTCs\):P0887\-00 \- TCM Power Control Circuit High. P0901 \- Clutch Actuator Circuit Range/Performance. U0001\-00 \- Can C Bus. U1412 \- Implausible Vehicle Speed Signal Received.

JSON: [/v1/bulletins/10121806](/v1/bulletins/10121806)

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