Important Notice

Blue&Me Control Unit Fiat Cinquecento 500

DiPa Code:
BLUEME053R
OEM Code:
51884624
Brand:
DIPA SPORT
Condition:
Remanufactured
Blue&Me Module
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Warnings
WARNING: A proxy re-alignment may be necessary using appropriate diagnostic tools
Typical Errors and Defects

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

Applications
FIAT
FIAT 500 (312_)
Model Year of Production Displacement KW HP Cylinders Fuel Type Engine Code
500 (312_) 2007-07-01 - 1242 cc 51 KW 69 HP 4 Cylinders Gasoline 169 A4.000
500 (312_) 2007-10-01 - 1368 cc 74 KW 100 HP 4 Cylinders Gasoline 169 A3.000
500 (312_) 2007-10-01 - 1248 cc 55 KW 75 HP 4 Cylinders Diesel 169 A1.000
500 (312_) 2008-09-01 - 1368 cc 75 KW 102 HP 4 Cylinders Gasoline 169 A3.000
500 (312_) 2009-02-01 - 1368 cc 77 KW 105 HP 4 Cylinders Gasoline 169 A3.000
500 (312_) 2009-12-01 - 1248 cc 70 KW 95 HP 4 Cylinders Diesel 199 B1.000
500 (312_) 2009-12-01 - 1248 cc 70 KW 95 HP 4 Cylinders Diesel 312 B1.000
500 (312_) 2010-01-01 - cc 24 KW 33 HP Cylinders Elettrico 24
500 (312_) 2010-07-01 - 875 cc 63 KW 86 HP 2 Cylinders Gasoline 312 A2.000
500 (312_) 2010-12-01 - 1242 cc 51 KW 69 HP 4 Cylinders Benzina/Gasauto (GPL) 169 A4.000
500 (312_) 2011-01-01 - 2017-12-01 1368 cc 65 KW 88 HP 4 Cylinders Benzina/Etanolo 327 A.011
500 (312_) 2011-08-01 - 1368 cc 79 KW 107 HP 4 Cylinders Benzina/Etanolo 169 A3.000
500 (312_) 2011-09-01 - 1368 cc 62 KW 85 HP 4 Cylinders Gasoline 310 A2.011
500 (312_) 2012-09-01 - cc 83 KW 113 HP Cylinders Elettrico E99
500 (312_) 2012-09-01 - 964 cc 48 KW 65 HP 2 Cylinders Gasoline 312 A4.000
500 (312_) 2013-02-01 - 1368 cc 99 KW 135 HP 4 Cylinders Gasoline 312 A1.000
500 (312_) 2013-09-01 - 1368 cc 101 KW 137 HP 4 Cylinders Gasoline EAF
500 (312_) 2013-09-01 - 1368 cc 101 KW 137 HP 4 Cylinders Gasoline EAM
500 (312_) 2013-10-01 - 875 cc 77 KW 105 HP 2 Cylinders Gasoline 199 B6.000
500 (312_) 2013-12-01 - 964 cc 44 KW 60 HP 2 Cylinders Gasoline 312 A4.000
500 (312_) 2013-12-01 - 964 cc 44 KW 60 HP 2 Cylinders Gasoline 312 A6.000
500 (312_) 2013-12-01 - 875 cc 59 KW 80 HP 2 Cylinders Gasoline 312 A5.000
500 (312_) 2014-11-01 - 2015-12-01 1368 cc 123 KW 167 HP 4 Cylinders Gasoline 312 A1.000
500 (312_) 2014-11-01 - 2015-12-01 1368 cc 123 KW 167 HP 4 Cylinders Gasoline 312 A3.000
Techinical Info

The Blue&Me control unit with OE code 51884624 is a second-generation multimedia electronic module, internally identified as Lauberhorn. This module has been used on various vehicles of the FCA Group (now Stellantis), produced between 2010 and 2012.

It is a version developed as a unified spare part, suitable for multiple models of Fiat, Lancia, and Alfa Romeo brands. From a hardware perspective, the OE control unit 51884624 is identical to versions with code 5052XXXX, but it is more versatile for applications across multiple brands.

Technical specifications:

  • Manufacturer: Magneti Marelli
  • Bluetooth 2.0 + EDR, supporting hands-free profile (HFP) and phonebook access profile (PBAP); does not support A2DP for audio streaming
  • USB 2.0 port for multimedia devices
  • AUX input on pre-wired versions
  • 7-pin connector
  • NW140 flash memory
  • Improved compatibility with smartphones and hands-free systems
  • Resolved echo issues present in previous versions

Model applications

FIAT

  • 500

DIPA can also service this module through revision.

Common faults and malfunctions

Over time, the Blue&Me OE 51884624 control unit has exhibited various electronic defects, many attributable to corruption of the internal NAND memory or firmware crashes.

Main fault symptoms:

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

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

  1. USB port not working

Devices are not recognized and sometimes charging does not activate. Often related to internal memory issues.

  1. Unstable or non-functioning Bluetooth

The module overheats and stops working, causing connection difficulties or continuous disconnections during calls.

  1. Error messages on the instrument cluster

"Blue&Me Unavailable" or "Blue&Me Error" may indicate corrupted memory or failed software update. Attempts to update via USB often fail.

  1. Unusual battery drain

The module remains active even with the vehicle off, causing battery discharge within a few days.

  1. Firmware not updatable

The system may freeze at boot and fail to recognize USB files, even after physical resets such as disconnecting the battery.

  1. Odometer flashing on the dashboard

A classic symptom of proxy alignment errors or communication issues between control units.

  1. Steering wheel commands not working

Buttons may be physically worn out, or there may be a logical interruption in input management.

  1. Inability to connect for diagnostics

In case of critical damage, the module may become completely invisible to diagnostic tools.

Recurring symptoms of OE 51884624 control unit

Summary of the most common issues found with this module:

  • Non-functioning or connection-problem Bluetooth
  • Flashing odometer on the instrument cluster
  • USB port not operational
  • Unusual battery drain even after short periods of parking
  • Steering commands not working or partially functional
  • Hands-free absent
  • Failure to complete proxy alignment
  • Communication failure with the diagnostic tool

Error codes detected during diagnosis

The OE 51884624 control unit can 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 – Diagnostic sensor unit
  • 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 – Telecommunication control unit anomaly
  • U1733 – Missing message from telematic system

Conclusion

The Blue&Me OE 51884624 control unit is a versatile module designed for use across multiple FCA Group brands. 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 process, from order to after-sales assistance. It can intervene to revise these components and restore full functionality, saving on replacement costs and benefiting the environment through circular economy practices.