Blue&Me Module Fiat Abarth 500 (312_)

Typical Defects:
Bluetooth does not work, does not connect with the mobile phone
The kilometers flash on the instrument panel
The USB stick does not work
The battery tends to discharge abnormally, especially after short periods of inactivity
The steering wheel controls do not respond or work partially
The hands-free system stops working
Unable to perform proxy alignment
Does not enter diagnostics

Error Codes:
147164 - Generic error
147180 - Generic error
147188 - Generic error
147210 - Generic error
147216 - Generic error
147247 - Generic error
147252 - Generic error
147268 - Generic error
168689 - Generic error
168697 - Generic error
168699 - Generic error
168702 - Generic error
168703 - Generic error
168713 - Generic error
168715 - Generic error
168731 - Generic error
168743 - Generic error
47204 - Generic error
B1005 - Diagnostic sensor unit
B1039 - Dynamic control selector input
B10AA - Proxy configuration control
P0022 - Convergence node control unit
U1602 - CAN bus line error, off/intermittent
U1701 - Communication error with body computer
U1707 - Info-telematics control unit/Convergence control unit
U1733 - Communication with telematics system, missing message

The Blue&Me control unit with OE code 51857617 è is a multimedia electronic module of second generationinternally identified by the name Lauberhorn. This module è was used on various vehicles of the FCA Group (now Stellantis)produced between 2010 and 2012.

This is a version developed as a unified replacementsuitable for multiple models of the Fiat, Lancia, and Alfa Romeo brands. From a hardware perspective, the OE control unit 51857617 è identical to the versions with code 5052XXXX, but is moreù versatile for applications on moreù brand.

Technical specifications:

• Manufacturer: Magneti Marelli
• Bluetooth 2.0 + EDR, with support for profiles hands-free (HFP) and address book (PBAP); does not support A2DP for audio streaming
• USB port 2.0 for multimedia devices
• AUX input on equipped versions
• 7 pin connector
• flash memory NW140
• Improved compatibilityà with smartphones and hands-free systems
• Resolution of the issue of’echo present in previous versions

Model applications

ABARTH

• 500
• 595
• 695

FIAT

• 500

DIPA può intervene to review this module as well.

Frequent faults and malfunctions

Over time, the Blue control unit&Me OE 51857617 has exhibited several electronic defects, many of which are attributable to corruption of the internal NAND memory or a firmware crash.

Main failure symptoms:

1. Failure to start and absence of the Blue logo&Me

The system does not start when the vehicle is turned on. Cause: firmware crash or damage to the NAND.

1. Non-functioning USB port

Devices are not detected and in some cases charging does not activate. Often related to internal memory issues.

1. Unstable or non-functioning Bluetooth

The module overheats and stops functioning, causing difficultiesà with continuous connection or disconnection during calls.

1. Error messages’on the instrument panel

“Blue&Me Unavailable” or “Error Blue&Me” may indicate corrupted memory or failed software update. The attempt to update via USB often fails.

1. Abnormal battery drain

The module remains active even when the vehicle is off, causing battery discharge in a few days.

1. Non-updatable firmware

The system canò freeze alreadyà at boot and not recognize USB files, even after physical resets such as disconnecting the battery.

1. Flashing kilometers on the dashboard

Classic symptom of proxy alignment error or communication issues between control units.

1. Non-functional steering wheel controls

The buttons may be physically worn, or there is a’logical interruption of input management.

1. Inabilityà to connect in diagnostics

In case of critical damage, the module mayò be completely invisible to diagnostic tools.

Recurring symptoms of the OE control unit 51857617

Summary of the mostù common problems found on this module:

• Bluetooth not working or having connection issues
• Flashing km on the instrument panel
• Non-functional USB port
• Abnormal battery drain even after short periods of inactivity
• Non-functional or partial steering wheel controls
• Missing hands-free system
• Unableà to complete the’proxy alignment
• No communication with the diagnostic tool

Error codes detected in diagnostics

The OE control unit 51857617 può generate a series of error codes, both generic and specific:

Generic codes:

• 147164, 147180, 147188, 147210, 147216
• 147247, 147252, 147268
• 168689, 168697, 168699, 168702, 168703
• 168713, 168715, 168731, 168743
• 47204

Specific codes:

• B1005 – Unità diagnostic sensor
• B1039 – Dynamic control selector input
• B10AA – Proxy configuration error
• P0022 – Convergence control unit node
• U1602 – CAN bus line error off/intermittent
• U1701 – Incorrect communication with body computer
• U1707 – Anomaly in the info-telematic control unit
• U1733 – Missing message from the telematics system

Conclusion

The Blue control unit&Me OE 51857617 è a versatile module designed for’use on moreù brands of the FCA Group. However, it suffers from recurring electronic issues related to internal memory and software management, which can compromise essential functions.

DIPA supports customers throughout the entire relationship phase, from’order to’after-sales assistance. It canò intervene to revise these components and restore them to full functionality,àwith cost savings on replacement and a benefit for the’environment thanks to the’circular economy.