AutoCodes – Chevrolet – U1538 Chevrolet

U1538 Chevrolet Code - Body Control Module Lost Communication With Driver Window Switch On LIN Bus

Quick Answer

The Local Interconnect Network (LIN) Bus consists of a single wire with a transmission rate of 10.417 Kbit/s. Common causes include Faulty Driver Window Switch, Driver Window Switch harness is open or shorted, Driver Window Switch 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: U1538 Chevrolet indicates Body Control Module Lost Communication With Driver Window Switch On LIN Bus.
Common causes: Common causes include Faulty Driver Window Switch, Driver Window Switch harness is open or shorted, Driver Window Switch 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 15,303

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 Jun 03, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U1538 Chevrolet Description

The Local Interconnect Network (LIN) Bus consists of a single wire with a transmission rate of 10.417 Kbit/s. The serial data is transmitted over a LIN circuit between a master control module and other LIN devices within a particular subsystem. If serial data communication is lost between any of the LIN devices on the LIN bus network, the master control module will set a no communication code against the non-communicating LIN device. The Diagnostic Trouble Code (DTC) will set when a supervised periodic message to the Body Control Module (BCM) from the Driver Window Switch has not been received.

OBDII Code U1538 Chevrolet - Body Control Module Lost Communication With Driver Window Switch On LIN Bus - AutoCodes.com — U1538 Chevrolet Code - Body Control Module Lost Communication With Driver Window Switch On LIN Bus

What does this mean?

What are the Possible Causes of the DTC U1538 Chevrolet?

Faulty Driver Window Switch
Driver Window Switch harness is open or shorted
Driver Window Switch circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC U1538 Chevrolet?

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 U1538 Chevrolet 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 U1538 Chevrolet Code

1. What are the common symptoms of OBDII code U1538 in a Chevrolet related to the Body Control Module losing communication with the driver window switch on the LIN bus?

Common symptoms include non-responsive power windows, erratic window operation, and issues with other functions controlled by the body control module.

2. What are some possible causes of OBDII code U1538 in a Chevrolet indicating communication loss between the Body Control Module and the driver window switch on the LIN bus?

Potential causes include wiring issues, a faulty driver window switch, a malfunctioning body control module, or a communication network problem on the LIN bus.

3. How can I diagnose the source of the communication problem between the Body Control Module and the driver window switch causing OBDII code U1538 in a Chevrolet?

Diagnosis typically involves checking the wiring connections, testing the driver window switch, inspecting the body control module, and using a scan tool to analyze communication on the LIN bus network.

4. Are there any DIY repair tips for addressing OBDII code U1538 in a Chevrolet due to Body Control Module communication loss with the driver window switch on the LIN bus?

DIY repair tips may include checking and repairing any damaged wiring, cleaning or replacing the driver window switch, resetting the body control module, or performing a software update if applicable.

5. Can a malfunctioning Body Control Module cause the driver window switch to lose communication on the LIN bus and trigger OBDII code U1538 in a Chevrolet?

Yes, a faulty Body Control Module can disrupt communication with the driver window switch on the LIN bus, leading to code U1538. In such cases, the Body Control Module may need to be repaired or replaced.

6. Is it safe to continue driving a Chevrolet with OBDII code U1538 related to the Body Control Module issue with the driver window switch communication on the LIN bus?

It is generally safe to drive the vehicle with this code, but it is recommended to address the underlying communication problem promptly to avoid further issues with window operation or potential impacts on other systems controlled by the Body Control Module.

7. Are there any recalls or technical service bulletins related to OBDII code U1538 in Chevrolet vehicles concerning communication loss between the Body Control Module and the driver window switch on the LIN bus?

Check with Chevrolet dealerships or online resources for any relevant recalls or technical service bulletins specific to your vehicle model and year that address issues with the Body Control Module and driver window switch communication.

8. Can a simple reset or reboot of the Body Control Module resolve the communication problem with the driver window switch on the LIN bus causing OBDII code U1538 in a Chevrolet?

In some cases, performing a reset or reboot of the Body Control Module may temporarily resolve the communication issue and clear the code. However, if the problem persists, further diagnosis and repairs may be necessary.

9. How can I prevent future occurrences of OBDII code U1538 in a Chevrolet related to communication loss between the Body Control Module and the driver window switch on the LIN bus?

Regular maintenance, inspecting wiring connections, addressing any issues promptly, and ensuring proper functioning of components like the driver window switch can help prevent reoccurrence of this code.

10. Is it advisable to seek professional assistance from a certified mechanic or dealership for diagnosing and repairing OBDII code U1538 in a Chevrolet linked to the Body Control Module issue with the driver window switch communication on the LIN bus?

For proper diagnosis and repair of complex communication issues involving the Body Control Module and the LIN bus network, it is recommended to consult a qualified mechanic or dealership with experience in handling electronic control module problems in Chevrolet vehicles.