AutoCodes – Generic – U1896

U1896 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 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 648
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 08, 2020
πŸ’¬ Need more help? Ask Coddy for instant answers β€” it's free!

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

What are the Possible Causes of the DTC U1896?

  • 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?

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 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.

Need more information about the U1896 code?

Need more information on how to fix the U1896 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U1896 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

  • U1896 Buick β€” Electro-Hydraulic Power Steering Module Lost Communication With Starter/Generator Control Module
  • U1896 Cadillac β€” Electro-Hydraulic Power Steering Module Lost Communication With Starter/Generator Control Module
  • U1896 Chevrolet β€” Electro-Hydraulic Power Steering Module Lost Communication With Starter/Generator Control Module
  • U1896 GMC β€” Electro-Hydraulic Power Steering Module Lost Communication With Starter/Generator Control Module
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 Code

1. What are the common symptoms of OBDII code U1896?

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

2. What can cause the OBDII code U1896 to trigger?

- The code U1896 can be triggered by a communication failure between the electro-hydraulic power steering module and the starter/generator control module.

3. How can I diagnose the OBDII code U1896?

- Diagnosing this code typically involves using a professional OBDII scanner to retrieve the specific diagnostic trouble code and checking the communication between the modules.

4. What are some repair tips for fixing the U1896 code?

- Repair tips may include checking for loose or damaged wiring connections, replacing faulty modules, updating software, and ensuring proper power supply to the modules.

5. Can I drive my vehicle with the U1896 code present?

- It is not recommended to drive your vehicle with the U1896 code present as it can lead to potential safety hazards and further damage to the power steering system.

6. How much does it cost to repair the U1896 code?

- The cost of repairing the U1896 code can vary depending on the underlying issue, parts needed for replacement, labor costs, and whether the repair is done at a dealership or an independent mechanic.

7. Will disconnecting the battery reset the U1896 code?

- Disconnecting the battery may temporarily clear the code, but it is not a permanent solution. It is essential to diagnose and fix the root cause of the communication issue between the modules.

8. Is the U1896 code a common issue in certain vehicle models?

- The U1896 code may be more common in vehicles equipped with electro-hydraulic power steering systems and starter/generator control modules.

9. Are there any preventive measures to avoid the U1896 code?

- Regular maintenance checks, ensuring proper electrical connections, and addressing any warning signs promptly can help prevent issues that lead to the U1896 code.

10. Can a DIY enthusiast repair the U1896 code at home?

- While some basic checks and repairs may be possible for experienced DIY enthusiasts, diagnosing and fixing the U1896 code may require specialized tools and expertise, so seeking professional help is recommended.

Discuss the causes and fixes for U1896 OBDII Code

Code U1896 comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play