AutoCodes – Chrysler – U0102 Chrysler

U0102 Chrysler Code - Lost Communication With Transfer Case Control Module

Quick Answer

Modules connected to the high speed serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Totally Integrated Power Module (TIPM), Totally Integrated Power Module (TIPM) harness is open or shorted, Totally Integrated Power Module (TIPM) circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: U0102 Chrysler indicates Lost Communication With Transfer Case Control Module.
Common causes: Common causes include Faulty Totally Integrated Power Module (TIPM), Totally Integrated Power Module (TIPM) harness is open or shorted, Totally Integrated Power Module (TIPM) circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 4,263

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 29, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U0102 Chrysler Description

Modules connected to the high speed serial data circuits monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the modules. The modules have prerecorded information about what messages are needed to be exchanged on the serial data circuits, for each virtual network. The messages are supervised and also, some periodic messages are used by the receiver module as an availability indication of the transmitter module. The OBDII code sets when the bus messages not received from the Totally Integrated Power Module (TIPM) for approximately two to five seconds.

OBDII Code U0102 Chrysler - Lost Communication With Transfer Case Control Module - AutoCodes.com — U0102 Chrysler Code - Lost Communication With Transfer Case Control Module

What does this mean?

What are the Possible Causes of the DTC U0102 Chrysler?

Faulty Totally Integrated Power Module (TIPM)
Totally Integrated Power Module (TIPM) harness is open or shorted
Totally Integrated Power Module (TIPM) circuit poor electrical connection

How to Fix the DTC U0102 Chrysler?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U0102 Chrysler code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about U0102 Chrysler Code

What does the OBDII code U0102 mean for Chrysler vehicles?

U0102 indicates a "Lost Communication With Transfer Case Control Module," meaning the vehicle's computer is unable to communicate with the transfer case control module.

What are the common symptoms associated with the U0102 code?

Common symptoms include the malfunction indicator lamp (MIL) being illuminated, issues with shifting between drive modes, or the transfer case not responding as expected.

What could cause the U0102 code to be triggered in my Chrysler?

Causes may include damaged wiring or connectors, a faulty transfer case control module, issues with the vehicle's network communication, or problems with the engine control module (ECM).

How can I diagnose the U0102 code effectively?

Start by checking for any other codes and inspecting the wiring and connectors related to the transfer case control module. Use a scan tool to monitor data and check for communication issues.

What are some common repair tips for fixing the U0102 code?

Repair tips include repairing or replacing damaged wiring and connectors, resetting the vehicleâ€™s computer, or replacing the transfer case control module if it is found to be faulty.

Can I drive my Chrysler with the U0102 code?

It is not advisable to drive the vehicle with this code, as it may affect your ability to shift properly and could lead to further damage to the transfer case.

How much will it typically cost to repair the U0102 code?

Repair costs can vary widely depending on the underlying cause, ranging from minor wiring repairs to module replacement, potentially costing between $100 to $800 or more.

Will clearing the U0102 code fix the issue?

Clearing the code may temporarily turn off the MIL, but if the underlying issue is not resolved, the code will likely return.

Is the U0102 code specific to Chrysler vehicles?

While U0102 is a standard OBDII code, the specific symptoms and repairs may vary by manufacturer, but it is commonly seen in Chrysler vehicles due to their unique systems.

What should I do if the U0102 code keeps coming back after repairs?

If the code returns, further diagnosis is needed to investigate possible issues with the vehicleâ€™s network communication or to check for other related faults that may not have been addressed.