AutoCodes – Lexus – U0208 Lexus

U0208 Lexus Code - Lost Communication with Seat Control Module 'A'

Quick Answer

The Controller Area Network (CAN) is a standard bus system in vehicles that enables the connection of automotive devices without the need for a host computer. Common causes include Faulty Controller Area Network (CAN) Communication System, Faulty Seat Control Module 'A', Seat Control Module 'A' harness is open or shorted. 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 Lexus indicates Lost Communication with Seat Control Module 'A'.
Common causes: Common causes include Faulty Controller Area Network (CAN) Communication System, Faulty Seat Control Module 'A', Seat Control Module 'A' harness is open or shorted.
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 1,217

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 28, 2023

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code U0208 Lexus Description

The Controller Area Network (CAN) is a standard bus system in vehicles that enables the connection of automotive devices without the need for a host computer. The exchange of operating information and commands among devices is facilitated by pre-programmed information about the required message exchange on the serial data circuits. Communication is carried out using two dedicated wires, known as CAN high and CAN low, with both lines carrying 2.5V when the CAN bus is in idle mode. During the transmission of data bits, the CAN high line increases to 3.75V while the CAN low drops to 1.25V, creating a 2.5V differential between the lines. Since communication relies on a voltage differential between the two bus lines, the CAN bus is NOT sensitive to inductive spikes, electrical fields, or other noise. The Diagnostic Trouble Code (DTC) sets when a periodic message from the Seat Control Module 'A' has not been received.

OBDII Code U0208 Lexus - Lost Communication with Seat Control Module 'A' - AutoCodes.com — U0208 Lexus Code - Lost Communication with Seat Control Module 'A'

What does this mean?

What are the Possible Causes of the DTC U0208 Lexus?

Faulty Controller Area Network (CAN) Communication System
Faulty Seat Control Module 'A'
Seat Control Module 'A' harness is open or shorted
Seat Control Module 'A' circuit poor electrical connection

How to Fix the DTC U0208 Lexus?

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 does this mean?

Code Tech Notes

When there are problems with the way different systems in a vehicle communicate with each other using a technology called Controller Area Network (CAN) communication, Diagnostic Trouble Codes (DTC) are displayed. These codes can be caused by issues with the main bus or branch of the communication network, or with the Electronic Control Units (ECUs) and sensors that make up the different systems. If you see code for both the CAN communication problems and internal or power source problems at the same time, you should focus on fixing the internal or power source problems first.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U0208 Lexus 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 Lexus Code

1. What are the common symptoms of OBDII code U0208 in a Lexus related to the lost communication with the Seat Control Module 'A'?

- Common symptoms include malfunctioning power seat controls, non-responsive seat adjustments, and warning lights on the dashboard.

2. What are some possible causes of the U0208 OBDII code indicating lost communication with the Seat Control Module 'A' in a Lexus?

- Potential causes may include a faulty seat control module, wiring issues, loose connections, or a malfunctioning CAN bus communication system.

3. How can I diagnose the U0208 code in my Lexus related to the lost communication with the Seat Control Module 'A'?

- Diagnosis typically involves using a diagnostic scanner to retrieve the trouble codes, inspecting the seat control module and its connections, and testing the communication circuits for faults.

4. Is it safe to drive my Lexus with the U0208 code indicating lost communication with the Seat Control Module 'A' present?

- It is generally not recommended to drive the vehicle with this code active, as it can affect the proper functioning of the seat controls and potentially lead to safety issues.

5. Can I repair the U0208 OBDII code related to lost communication with the Seat Control Module 'A' in my Lexus myself?

- While some basic checks like inspecting connections can be done DIY, diagnosing and repairing the root cause of the code may require professional assistance due to the complexity of the vehicle's electrical system.

6. Are there any common quick fixes for resolving the U0208 code in a Lexus due to lost communication with the Seat Control Module 'A'?

- Quick fixes may include checking and securing the seat control module connections, ensuring proper power supply, and resetting the system by disconnecting the battery.

7. What is the typical cost to repair the U0208 OBDII code indicating lost communication with the Seat Control Module 'A' in a Lexus?

- Repair costs can vary depending on the exact cause of the issue, but they may range from a few hundred to over a thousand dollars, including parts and labor.

8. How long does it usually take to fix the U0208 code in a Lexus related to the lost communication with the Seat Control Module 'A'?

- The repair time can vary based on the complexity of the problem and availability of parts, but it typically takes a few hours to a full day to diagnose and resolve the issue.

9. Can the U0208 OBDII code in a Lexus indicating lost communication with the Seat Control Module 'A' cause any other problems in the vehicle?

- Yes, unresolved communication issues with the seat control module can potentially lead to other electrical malfunctions in the vehicle and affect overall system performance.

10. Will resetting the OBDII system clear the U0208 code related to lost communication with the Seat Control Module 'A' in a Lexus?

- Resetting the system may temporarily clear the code, but if the underlying issue is not fixed, the code is likely to reappear once the problem is detected again during vehicle operation.