HomeU0102 · Code meaning and manufacturer information
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U0102

Code meaning and manufacturer information

U0102

What does this code mean?

The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.

A code identifies a detected condition, not a part that must automatically be replaced.

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A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

Manufacturer wording

Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.

ChryslerU0102
Lost Communication With Transfer Case Control Module / AWD

NHTSA 10222991

JeepU0102-00
Lost Communication With Transfer Case Control Module/AWD

NHTSA 11023606

Manufacturer communications

23

Original wording in English

23-033-25

JEEP

Reported code forms U0102-00

Not applicable to vehicles built for US market. Multiple Systems Repair Bundle Campaign Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the…

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1801122

DODGE

Reported code forms U0102

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further…

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1801222

DODGE

Reported code forms U0102

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further…

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1801322

CHRYSLER

Reported code forms U0102

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further…

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0803721

RAM

Reported code forms U0102-00

Flash: Hybrid Control Processor (HCP) Updates This bulletin involves updating the HCP with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further…

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Check vehicle applicability

212

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

Historical vehicle association; OBD-II compatibility is not established by this record.

MakeModelModel year
CadillacESCALADE2020
CadillacESCALADE2019
CadillacESCALADE2018
CadillacESCALADE2017
CadillacESCALADE2014
CadillacESCALADE2013
CadillacESCALADE2012
CadillacESCALADE2011
CadillacESCALADE2010
CadillacESCALADE2009
CadillacESCALADE2008
CadillacESCALADE2007
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Historical records · 1 · Historical vehicle association; OBD-II compatibility is not established by this record.

Before replacing a part

Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.

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Can I keep driving?

A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.