NHTSA ID Number: 10219289
Manufacturer Communication Number: 21-NA-186
Summary
This service bulletin provides repair information to correct a customer concern of Service Engine
Soon Illuminated in DIC and/or a Malfunctioning Fuel Gauge with DTC U0076/U18A2/P1001/P1434 or Other Message Counter Incorrect Codes Set.
Condition
Some customers may comment on a Service Engine Soon (SES) light and/or a malfunctioning fuel gauge.
Technicians may find U0076/U18A2/P1001/P1434 or other Message Counter Incorrect codes set current or in recent history.
Cause
The cause of the condition may be the wire harness at the Engine Control Module (ECM) is chafing against the ECM bracket.
Correction
Repair the wire(s) and secure the wire harness.
3 Affected Products
Vehicle
| MAKE | MODEL | YEAR |
| CHEVROLET | MALIBU | 2020-2022 |
1 Associated Document
Manufacturer Communications
Bulletin No.: 21-NA-186
Date: September, 2022
MC-10219289-0001.pdf 100.193KB
- Package Included: 50 pcs red waterproof wiring connectors for 22, 20, 18, 16 gauge wires, 40 pcs blue waterproof wiring connectors for 16, 14 gauge wires, 10 pcs yellow waterproof wiring connectors for 12, 10 gauge wires—total 100 pcs
- Premium Copper Core: The butt splice terminals use seamless and high-quality thick copper tubular, which makes the connection project safer! Fix the wire firmly, increase current flow, and decrease voltage drop
- Wide Usage: Our heat shrink wire connector is ideal for marine, automobile, industry, electrical and electronics. Whether working on boat, vehicle, RC car, home, scientific project, car stereo, or electrical DIY, the crimp connectors will work well
- 3:1 Heatshrink Ratio: The heat shrink butt connector has dual-wall shrinking tube and inside hot melt glue, providing a fully safe seal and wire corrosion. Its dual wall insulation seals against moisture corrosion, air leakage, and can be used underground
- AIRIC Brand Advantages: As a professional manufacturer of electrical accessories, we own a large leading wire connectors factory and get UL, CE, ROHS, SGS, and ISO9001-2005 international quality system certification
- Solid Crimp: Seamless tinned copper barrel grips each wire without splitting, giving these butt connectors a strong hold that helps reduce the risk of short circuits; The thick copper barrel helps reduce voltage drop, supports high current flow, and minimizes heat buildup for dependable electrical connectors
- Watertight Seal: These heat shrink butt connectors feature dual-wall tubing with a 3:1 shrink ratio and a heat-activated adhesive lining, creating a secure 360-degree seal around each crimp; The dual-wall tubing helps seal out moisture and reduce corrosion, making these heat shrink wire connectors suitable for underground conduit, engine bays, and other demanding environments
- Color-Coded Sizing: Color-coded tubing lets you quickly identify the right butt splice connectors by wire gauge, with red for AWG 22–16, blue for AWG 16–14, yellow for AWG 12–10, black for AWG 14–12, and white for AWG 24–22; Strip, insert, and crimp with a standard tool, then apply heat to create secure wire connectors for a wide range of wiring projects
- Wide Applications: Ideal for marine, automotive, home, trailer, and outdoor wiring projects; These marine butt connectors provide dependable connections for boat consoles, bilge pumps, vehicle wiring, outdoor speakers, and other electrical installations where moisture protection is important
- Available Options: This assortment includes red, blue, and yellow waterproof butt connectors for wire sizes from AWG 22–10; Choose the appropriate color-coded connector to match your wire gauge for marine wire connectors, vehicle harnesses, home electrical wiring, and other electrical applications
- Time Saver: Solderless,crimpless, all you need is just a heat gun to finish the joint, much faster and easier than the old way
- Fit for Confined and Narrow Spaces: Can be bent after connection and no need to crimp or solder in the confined area, just control the temperature via a heat gun
- Waterproof and Seal Performance: There is two hot melt waterproof adhesive rings in each butt connector, which help it hold up better to moisture
- High Temperature Proof in A Short Time: Use exclusive material in the butt connectors to avoid shrink tubing melting before solder ring
- IATF16949:2016 Listed: The Kuject solder seal connectors meet the newest standard of International Automotive Task Force, which is the most standardized way for you to repair or modify your car
- COMPLIANT WITH ALL RELEVANT STANDARDS:With Haisstronica 330PCS( A.W.G.:22-16 150 PCS,16-14 100 PCS,12-10 32 PCS,26-24 48 PCS) heat shrink waterproof wire connectors are compliant with ROHS, ISO 9001:2008, SGS, and CE standards
- HIGH-QUALITY COPPER CORE:Heat shrink butt connectors use a copper core with a higher thickness rating.This makes your connection project safer and better meets our customers’ quality needs
- HIGH-QUALITY HEAT SHRINK:Translucent heat shrink tubing provides high tensile strength and resistance to stretch and minimize mechanical damage.The thick barrel ensures a strong crimp every time.The inner wall of the heat-shrinkable tube has enough hot melt adhesive to ensure waterproof performance reliability.Your wire will never slip out of these heat shrink wire connectors
- RECOGNIZABLE:Tubings of varying colors with easily recognizable wire gauge markings. Simply measure the wiring, and by checking the mark of wire gauge of the polyolefin tubing, then you can quickly choose the right connector
- WIDE APPLICATIONS: High quality 3:1 shrinkage tubing has a heat-activated sealant lining to provide complete secure seal. It's flame-retardant, waterproof, and can be used underground. Compliant with all electrical standards, Perfect for marine and automobile applications, whether you are working on your boat, Vehicle, Home or scientific project
- Tinned Copper Core: Butt connectors use a heavy-duty copper core, strong crimp, higher conductivity
- Package Includes: 100Pcs Blue heat shrink butt connectors that can be used on wire AWG from 16 to 14
- Solderless Crimping: Insert the wires to be connected, crimp both sides with crimping pliers, and then heat with a heat gun
- 3:1 Shrink Ratio: Marine grade heat shrink tubing provides high tensile strength and enough hot melt adhesive inside the tubing to ensure waterproof performance, your wires will never slip out of the wire connectors
- Wide Application: Wire connectors are waterproof, stable, and corrosion resistant and are used in the automotive, marine, electrical, and electronic industries
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Copyright 2022 General Motors LLC. All Rights Reserved. Service Bulletin Bulletin No.: 21-NA-186 Date: September, 2022 TECHNICAL Subject: Service Engine Soon Illuminated in Driver Information Center (DIC) and/or a Malfunctioning Fuel Gauge, DTC U0076/U18A2/P1001/P1434 or Other Message Counter Incorrect Codes Set Brand: Model: Model Year: VIN: Engine: Transmission: from to from to Chevrolet Malibu 2020 2022 — — 1.5L (LFV) — Involved Region or Country North America, Israel, Palestine Condition Some customers may comment on a Service Engine Soon (SES) light and/or a malfunctioning fuel gauge. Technicians may find U0076/U18A2/P1001/P1434 or other Message Counter Incorrect codes set current or in recent history. Cause The cause of the condition may be the wire harness at the Engine Control Module (ECM) is chafing against the ECM bracket. Correction Repair the wire(s) and secure the wire harness. Page 2 September, 2022 Bulletin No.: 21-NA-186 Service Procedure 5890376 1. Locate the ECM harness (1) in the engine compartment near the battery. Refer to Engine Control Module Replacement in SI. 5890381 2. Inspect the ECM wire harness for any chafing. Repair any damaged wires. Refer to Wire to Wire Repair in SI. 3. Wrap the wire harness with anti-abrasion tape to prevent more chafing and re-secure the harness. Warranty Information For vehicles repaired under warranty, use: Labor Operation Description Labor Time 5430902 Wire-to-Wire Repair Use Published Labor Operation Time Version 2 Modified Released August 16, 2021 Revised August 26, 2022 – Added the 2022 Model Year. GM bulletins are intended for use by professional technicians, NOT a “do-it-yourselfer”. They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information. WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION
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