AutoCodes – GMC – B1000 GMC

B1000 GMC Code - Electronic Control Unit

Quick Answer

The internal fault detection is handled inside the Electronic Control Unit (ECU). Common causes include Faulty Electronic Control Unit (ECU), Electronic Control Unit harness is open or shorted, Electronic Control Unit circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: B1000 GMC indicates Electronic Control Unit.
Common causes: Common causes include Faulty Electronic Control Unit (ECU), Electronic Control Unit harness is open or shorted, Electronic Control Unit circuit poor electrical connection.
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

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Code Popularity 12,248

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 04, 2023

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B1000 GMC Description

The internal fault detection is handled inside the Electronic Control Unit (ECU). The symptom byte information is for engineering reference only. No external circuit diagnosis is involved. The Diagnostic Trouble Code (DTC) will be set when the device has detected an internal malfunction. If DTC B1000 is set, replace the device that sets the DTC.

OBDII Code B1000 GMC - Electronic Control Unit - AutoCodes.com — B1000 GMC Code - Electronic Control Unit

What does this mean?

What are the Possible Causes of the DTC B1000 GMC?

Faulty Electronic Control Unit (ECU)
Electronic Control Unit harness is open or shorted
Electronic Control Unit circuit poor electrical connection

How to Fix the DTC B1000 GMC?

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

B1000:00 Electronic Control Unit (ECU) Performance No Additional Information Available
B1000:04 Side Object Detection Performance - RAM Failure
B1000:08 Electronic Control Unit Performance Signal Invalid
B1000:12 Electronic Control Unit Performance Below Minimum Threshold
B1000:31 Electronic Control Unit General Checksum Problem
B1000:33 Electronic Control Unit Performance Special Memory Failure
B1000:34 Electronic Control Unit Performance RAM Integrity
B1000:35 Electronic Control Unit Performance ROM Integrity
B1000:36 Electronic Control Unit Performance EEPROM Integrity
B1000:37 Electronic Control Unit Performance Watchdog / Safety Failure
B1000:38 Electronic Control Unit Performance Supervision Software Failure
B1000:39 Electronic Control Unit Performance Internal Electronic Failure
B1000:43 Electronic Control Unit Performance EEPROM Error
B1000:46 Side Object Detection Performance - Invalid Configuration
B1000:56 Electronic Control Unit Performance Allowable Number of Transitions/Events Exceeded
B1000:57 Electronic Control Unit Performance
B1000:73 Electronic Control Unit Performance Parity Error
B1000:0F Electronic Control Unit Performance Erratic
B1000:2B Electronic Control Unit Performance Missing Reference
B1000:2C Electronic Control Unit Performance Reserved
B1000:3B Electronic Control Unit Performance Internal Self-Test Failed
B1000:3C Electronic Control Unit Performance Internal Communications Failure
B1000:4A Side Object Detection Performance - PROM Checksum Error
B1000:F0 Side Object Detection RF Transmit Chain Failed
B1000:F1 Side Object Detection RF Receive Chain Failed
B1000:F2 Side Object Detection Frequency Calibration Failure
B1000:F3 Side Object Detection Inter-Processor Communication Failed

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1000 GMC 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 B1000 GMC code?

Need more information on how to fix the B1000 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1000 GMC code diagnosed by a professional: Find a repair shop in your area

Information for Specific GMC Models

B1000 2014 GMC Sierra — Electronic Control Unit
B1000 2015 GMC Sierra — Electronic Control Unit
B1000 2016 GMC Sierra — Electronic Control Unit
B1000 2017 GMC Sierra — Electronic Control Unit
B1000 2018 GMC Sierra — Electronic Control Unit

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 B1000 GMC Code

1. What is OBDII code B1000 GMC related to the Electronic Control Unit (ECU)?

This code typically indicates a communication error between the ECU and other control modules in the vehicle.

2. What are common symptoms of OBDII code B1000 GMC?

Common symptoms include dashboard warning lights illuminating, issues with electronic systems like power windows, door locks, or climate control, and potentially a no-start condition.

3. What can cause OBDII code B1000 GMC to trigger?

Possible causes include faulty wiring connections, a defective ECU, a malfunctioning control module, or a communication network problem within the vehicle.

4. How can I diagnose OBDII code B1000 GMC?

Diagnosis typically involves using a scan tool to retrieve the specific codes present, testing the wiring connections for continuity, and checking the ECU and related components for proper functioning.

5. Can I still drive my vehicle with OBDII code B1000 GMC?

It's not recommended to drive the vehicle with this code active, as it can affect the operation of critical electronic systems in the vehicle.

6. How should I repair OBDII code B1000 GMC?

Repair may involve fixing any faulty wiring connections, replacing a defective ECU or control module, or resolving any communication network issues detected during diagnosis.

7. Do I need special tools to fix OBDII code B1000 GMC?

While basic tools like a scan tool and multimeter may be sufficient for diagnosis, fixing this code may require specialized tools or software for programming or reprogramming control modules.

8. Can OBDII code B1000 GMC be intermittent?

Yes, this code can sometimes be intermittent, depending on the root cause, which may make diagnosis and repair more challenging.

9. Is it possible to reset OBDII code B1000 GMC without fixing the underlying issue?

Resetting the code without addressing the underlying problem is not recommended, as the issue will likely persist and could potentially lead to further damage or safety concerns.

10. How long does it typically take to repair OBDII code B1000 GMC?

The repair time can vary depending on the exact cause of the issue, but it may range from a few hours to a full day, especially if specialized parts or programming are needed.