AutoCodes – Generic – U1892

U1892 Code - Hybrid Control Module Lost Communication With Electro-Hydraulic Power Steering 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 Electro-Hydraulic Power Steering (EHPS) Module, Electro-Hydraulic Power Steering Module harness is open or shorted, Electro-Hydraulic Power Steering 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: U1892 indicates Hybrid Control Module Lost Communication With Electro-Hydraulic Power Steering Module.
Common causes: Common causes include Faulty Electro-Hydraulic Power Steering (EHPS) Module, Electro-Hydraulic Power Steering Module harness is open or shorted, Electro-Hydraulic Power Steering 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 797

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 08, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U1892 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 U1892 - Hybrid Control Module Lost Communication With Electro-Hydraulic Power Steering Module - AutoCodes.com — U1892 Code - Hybrid Control Module Lost Communication With Electro-Hydraulic Power Steering Module

What does this mean?

What are the Possible Causes of the DTC U1892?

Faulty Electro-Hydraulic Power Steering (EHPS) Module
Electro-Hydraulic Power Steering Module harness is open or shorted
Electro-Hydraulic Power Steering Module circuit poor electrical connection
Faulty Hybrid Control Module (HCM)

How to Fix the DTC U1892?

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 U1892 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 U1892 code?

Need more information on how to fix the U1892 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U1892 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

U1892 Buick — Hybrid Control Module Lost Communication With Electro-Hydraulic Power Steering Module
U1892 Cadillac — Hybrid Control Module Lost Communication With Electro-Hydraulic Power Steering Module
U1892 Chevrolet — Hybrid Control Module Lost Communication With Electro-Hydraulic Power Steering Module
U1892 GMC — Hybrid Control Module Lost Communication With Electro-Hydraulic Power Steering 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 U1892 Code

1. What are the common symptoms of OBDII code U1892?

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

2. What are the possible causes of the Hybrid Control Module losing communication with the Electro-Hydraulic Power Steering Module?

- Causes may include wiring issues, a faulty power steering module, a malfunctioning hybrid control module, or a communication network problem.

3. How can I diagnose OBDII code U1892?

- Diagnosis typically involves using a diagnostic scanner to retrieve the code, checking the wiring and connectors for any damage, and testing the power steering and hybrid control modules for proper functionality.

4. Can driving with OBDII code U1892 cause further damage to the vehicle?

- Driving with this code may result in difficulty steering the vehicle, so it is recommended to address the issue promptly to avoid potential safety hazards or further damage.

5. How can I repair OBDII code U1892?

- Repair options may include repairing or replacing damaged wiring, replacing the Electro-Hydraulic Power Steering Module or Hybrid Control Module, or reprogramming the modules to establish communication.

6. Is it safe to continue driving with OBDII code U1892?

- It is not recommended to continue driving with this code, as it can lead to unsafe driving conditions due to the loss of power steering assistance.

7. How much does it typically cost to repair OBDII code U1892?

- The cost of repair can vary depending on the exact cause of the issue, but it may involve expenses for parts, labor, and diagnostic services.

8. Can OBDII code U1892 be a recurring issue even after repair?

- If the root cause of the communication loss is not properly addressed, the code may reappear. Thorough diagnosis and repair are essential to prevent recurrence.

9. Are there any DIY steps I can take to troubleshoot OBDII code U1892?

- DIY steps may include checking the fuses related to the power steering and hybrid control modules, inspecting visible wiring for damage, and ensuring all connectors are securely attached.

10. How long does it typically take to repair OBDII code U1892?

- The repair time can vary depending on the complexity of the issue and the availability of parts. It is advisable to consult a professional for an accurate estimate of repair time.