AutoCodes – Cadillac – U0208 Cadillac

U0208 Cadillac Code - Lost Communication With Seat Memory Control Module

Quick Answer

Modules connected to the high speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Seat Memory Control Module, Seat Memory Control Module harness is open or shorted, Seat Memory Control Module 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: U0208 Cadillac indicates Lost Communication With Seat Memory Control Module.
Common causes: Common causes include Faulty Seat Memory Control Module, Seat Memory Control Module harness is open or shorted, Seat Memory Control Module 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 1,144

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 Apr 03, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U0208 Cadillac Description

Modules connected to the high speed General Motor Local Area Network (GMLAN) 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 supervision time-out period is 250 ms. Each message contains the identification number of the transmitter module. The Diagnostic Trouble Code (DTC) sets when a periodic message from the Seat Memory Control Module has not been received.

OBDII Code U0208 Cadillac - Lost Communication With Seat Memory Control Module - AutoCodes.com — U0208 Cadillac Code - Lost Communication With Seat Memory Control Module

What does this mean?

What are the Possible Causes of the DTC U0208 Cadillac?

Faulty Seat Memory Control Module
Seat Memory Control Module harness is open or shorted
Seat Memory Control Module circuit poor electrical connection

How to Fix the DTC U0208 Cadillac?

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 U0208 Cadillac 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 U0208 Cadillac Code

What does the OBDII code U0208 mean for my Cadillac?

The code U0208 indicates a lost communication with the seat memory control module, which means that the vehicle's computer cannot communicate with the module responsible for seat position settings.

What symptoms might I experience if my Cadillac has the U0208 code?

Symptoms may include the seat memory function not working, inability to adjust the seats using memory settings, or warning lights related to the seat system on your dashboard.

What could cause the U0208 code to trigger in my Cadillac?

Common causes include a faulty seat memory control module, damaged wiring or connectors, a malfunctioning body control module (BCM), or issues with the vehicleâ€™s electrical system.

How can I diagnose the U0208 code in my Cadillac?

To diagnose the U0208 code, check for any damaged wiring or connectors related to the seat memory control module. Use a scan tool to see if other codes are present and test the module for proper function.

What are some repair tips for fixing the U0208 code?

Repairs may involve inspecting and repairing or replacing damaged wiring, ensuring all connectors are secure, and testing or replacing the seat memory control module if it's found to be faulty.

Can I drive my Cadillac with the U0208 code?

Yes, you can drive your vehicle, but the seat memory function will not work, which may affect comfort and convenience. Itâ€™s advisable to address the issue to restore full functionality.

Is the U0208 code related to other electrical issues in my Cadillac?

Yes, the U0208 code can be indicative of broader electrical issues, such as problems with the body control module or general wiring problems that may affect other systems in the vehicle.

How much will it cost to repair the U0208 code issue in my Cadillac?

Repair costs can vary widely depending on the underlying cause, ranging from simple wiring repairs to replacing the seat memory control module, which could cost anywhere from $100 to $800 or more.

Can I reset the U0208 code myself?

You can reset the code using an OBDII scanner, but if the underlying issue is not fixed, the code is likely to reappear. Itâ€™s best to diagnose and repair the root cause first.