AutoCodes – Chevrolet – U1896 Chevrolet

U1896 Chevrolet Code - Electro-Hydraulic Power Steering Module Lost Communication With Starter/Generator Control Module

Quick Answer

Modules connected to the class 2 and high-speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Starter/Generator Control Module (SGCM), Starter/Generator Control Module harness is open or shorted, Starter/Generator 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: U1896 Chevrolet indicates Electro-Hydraulic Power Steering Module Lost Communication With Starter/Generator Control Module.
Common causes: Common causes include Faulty Starter/Generator Control Module (SGCM), Starter/Generator Control Module harness is open or shorted, Starter/Generator 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 504

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Jun 08, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U1896 Chevrolet Description

Modules connected to the class 2 and 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 Diagnostic Trouble Code (DTC) is reported on a class 2 link to the scan tool by Powertrain Control Module (PCM) even if they may be set by different modules. The DTC will set when a node alive message has not been received from an identified module within the last 5 seconds after establishing class 2 serial data communication, or a supervised high-speed GMLAN message has not been received.

OBDII Code U1896 Chevrolet - Electro-Hydraulic Power Steering Module Lost Communication With Starter/Generator Control Module - AutoCodes.com — U1896 Chevrolet Code - Electro-Hydraulic Power Steering Module Lost Communication With Starter/Generator Control Module

What does this mean?

What are the Possible Causes of the DTC U1896 Chevrolet?

Faulty Starter/Generator Control Module (SGCM)
Starter/Generator Control Module harness is open or shorted
Starter/Generator Control Module circuit poor electrical connection
Faulty Electro-Hydraulic Power Steering (EHPS)

How to Fix the DTC U1896 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 U1896 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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Need Help with the Code?

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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 U1896 Chevrolet Code

1. What are the common symptoms of OBDII code U1896 in a Chevrolet related to the Electro-Hydraulic Power Steering Module?

- Common symptoms include loss of power steering assist, illuminated warning lights on the dashboard, and potential difficulty starting the vehicle.

2. What causes the OBDII code U1896 in a Chevrolet indicating that the Electro-Hydraulic Power Steering Module lost communication with the Starter/Generator Control Module?

- The code U1896 is usually triggered by a communication breakdown between the Electro-Hydraulic Power Steering Module and the Starter/Generator Control Module, possibly due to wiring issues or a faulty module.

3. How can I diagnose the OBDII code U1896 in my Chevrolet related to the Electro-Hydraulic Power Steering Module issue?

- Diagnosis typically involves using a scan tool to retrieve the trouble codes, checking the wiring connections between the modules, and performing a thorough inspection for any visible damage.

4. Is it safe to continue driving with the OBDII code U1896 alert in a Chevrolet with Electro-Hydraulic Power Steering Module problems?

- It is not recommended to drive the vehicle with this code active as it can lead to loss of power steering assistance, making it difficult to steer the vehicle safely.

5. What are the possible repair options for fixing the OBDII code U1896 in a Chevrolet indicating a communication issue between the Electro-Hydraulic Power Steering Module and the Starter/Generator Control Module?

- Repair options may include checking and repairing any damaged wiring, replacing faulty modules, updating software if necessary, and clearing the trouble codes.

6. Can a DIY enthusiast fix the OBDII code U1896 in a Chevrolet or is it recommended to seek professional help?

- While some basic checks like inspecting wiring connections can be done by a DIY enthusiast, diagnosing and repairing communication issues between modules may require specialized tools and expertise, making professional help advisable.

7. Are there any preventive measures to avoid encountering the OBDII code U1896 in a Chevrolet related to the Electro-Hydraulic Power Steering Module?

- Regular vehicle maintenance, including checking the electrical connections and keeping an eye on warning lights, can help prevent issues that may lead to communication breakdowns between modules.

8. How much does it typically cost to repair the OBDII code U1896 in a Chevrolet caused by communication problems between the Electro-Hydraulic Power Steering Module and the Starter/Generator Control Module?

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

9. Can a weak battery or alternator be a potential cause of triggering the OBDII code U1896 in a Chevrolet with Electro-Hydraulic Power Steering Module issues?

- Yes, a weak battery or alternator can potentially cause communication problems between modules, leading to the U1896 trouble code. It's recommended to ensure the electrical system is in good condition.

10. How long does it typically take to repair the OBDII code U1896 in a Chevrolet related to the Electro-Hydraulic Power Steering Module issue?

- The repair time can vary based on the exact cause of the problem and the complexity of the repair. It may range from a few hours to a day or more, depending on the extent of the diagnosis and repair needed.