Browse

Property For Sale Property For Rent

Used Cars Others

Antiques Collectibles Apparel Baby Kids Items Books， Movies And Music Electronics Free Stuff Garden Outdoor Health Beauty Home Goods Home Improvement Supplies Musical Instruments Office Supplies Others Pet Supplies Sporting Goods Ticket Toys Games Transportation

Business Crafts Design And Web Events Home Improvement Legal Lessons Personal Pets Photography Repair And Technical Support Wellness Writing， Translation， And Transcription Others

Activities & Groups Artists & Musicians Classes & Lessons Events Friendship & Networking Lost & Found Rideshare Sports Teams Volunteers Travel & Travel Partners Skills & Language Swap Other

How to Troubleshoot Automotive Wiring Harness Burnout Failures?

2 Answers

SanRyder

07/29/25 7:20am

Automotive wiring harness burnout failure troubleshooting method: Locate the specific fault position by checking the breakage of the fuse, as the fuse is designed to protect the vehicle's circuit. When a circuit fault occurs, the fuse burns out first. During the design of the wiring harness, manufacturers may fail to adhere to manufacturing standards, resulting in substandard harnesses, or the harness may be twisted too tightly during assembly, leading to breakage. The causes of automotive wiring harness breakage can be divided into internal and external factors. Internal factors include the main harness distributing branches that are designed too short, causing breakage during vehicle operation. External factors include modifications to the harness leading to breakage, or the harness being scraped, resulting in breakage. The repair method involves cutting off the burned insulation layer of the harness, trimming both ends of the wire, and reconnecting it with a wire of the same specification and length.

Was this review help?

2

2

Share

JuliaLee

08/13/25 12:21am

I encountered a wiring harness ablation issue last time, let's start with the actual troubleshooting. First, completely power off, locate the ablation spot to assess severity. Minor scorching can still be repaired, but if the entire section is blackened, you'll need to replace the wiring harness. The key is identifying the root cause - common culprits are short circuits or excessive current. Using a multimeter to test circuit continuity and impedance values is most effective. Aging/worn insulation, aftermarket electrical modifications exceeding power ratings, or poor grounding could all be responsible. For DIY repairs, first check if the corresponding fuse in the fuse box is blown. Keep high-temperature tape and heat shrink tubing handy - temporary fixes must ensure proper insulation. Having a circuit diagram for reference is infinitely better than guessing blindly. After repair, don't rush to drive - conduct a 30-minute load test to confirm normal temperature. Regular inspection of engine bay wiring harness clips is crucial - loose fasteners will eventually cause wear and problems.

Was this review help?

17

1

Share

Expand All

More Forum Discussions

Where is the engine number of BJ80?

BJ80's engine number is located on the engine. The BJ80 is positioned as a mid-to-large-size SUV, with body dimensions of 4765mm in length, 1955mm in width, and 2005mm in height, and a wheelbase of 2800mm. In terms of power, the BJ80 is equipped with 2.3T and 2.8T engines. The 2.3T gasoline engine delivers a maximum power of 184 kW and a maximum torque of 350 Nm, paired with a 6-speed automatic transmission from Japan's Aisin. For suspension, the BJ80 features a front double-wishbone with torsion bar spring and a rear five-link solid axle structure.

What is the purpose of engine start-stop?

Engine start-stop is achieved by equipping a traditional engine with an enhanced motor that has idle start-stop functionality, allowing the engine to completely shut down when the vehicle meets idle stop conditions. When the vehicle needs to move forward again, the idle start-stop motor system quickly responds to the driver's start command, rapidly restarting the engine, thereby reducing fuel consumption and exhaust emissions. For example, when the vehicle is stationary at a red light or in traffic congestion, the system can automatically stop the engine, while still allowing the use of in-car devices such as air conditioning and audio systems during the stop phase. This technology can save approximately 5% of fuel under normal driving conditions and around 15% in congested traffic.

What is the maintenance interval for the Toyota 86?

Toyota 86 requires a minor maintenance service at approximately every 5,000 kilometers driven and a major maintenance service at around every 10,000 kilometers, with minor and major services alternating thereafter. The specific maintenance schedule for the Toyota 86 can be found in the vehicle's user manual or by consulting staff at a Toyota 4S dealership. Below is relevant information: 1. Generally, a car's maintenance interval is not fixed. If the vehicle is used infrequently, the maintenance interval can be extended to every 7,000-10,000 kilometers. For older vehicles, the maintenance interval should be shortened, with service recommended approximately every 3,000 kilometers. 2. During maintenance, the most routine procedure is changing the engine oil and oil filter. Typically, new cars can use lower-viscosity oil, while older vehicles require higher-viscosity oil. When changing the oil, it is essential to use the same brand and type of oil. Mixing different oils can affect the engine's normal operation and, in severe cases, may lead to engine failure. 3. As a sports car, the Toyota 86 is generally not used as frequently, but it is prone to aggressive driving. Therefore, it is advisable to perform maintenance approximately every 5,000 kilometers.

Where is the air conditioning filter located in the Nissan Qashqai?

The air conditioning filter in the Nissan Qashqai is located inside the glove compartment on the passenger side, and it can be seen upon removal. The Nissan Qashqai is a compact SUV with body dimensions of 4401mm in length, 1837mm in width, and 1593mm in height, and a wheelbase of 2646mm. In terms of exterior design, the front face of the Nissan Qashqai still adopts the Nissan family-style design language, with a V-shaped chrome trim running through the blackened grille, making it quite eye-catching. Under the hood, the Nissan Qashqai is equipped with a 2.0-liter naturally aspirated engine, delivering a maximum power of 154 horsepower and a peak torque of 204 Nm, paired with a CVT transmission.

What is the reason for oil spraying from the engine exhaust pipe?

Engine exhaust pipe oil spraying is caused by a damaged car valve oil seal, and the solution is to go to a repair shop to replace the oil seal. The car exhaust pipe, also known as the car exhaust pipe hose, is installed between the engine exhaust manifold and the muffler, allowing the entire exhaust system to have a flexible connection. This helps in reducing vibration and noise, facilitates installation, and extends the life of the exhaust muffler system. The engine exhaust pipe is mainly used in light vehicles, micro vehicles, and buses. Its structure consists of a double-layer corrugated pipe covered with a steel wire mesh sleeve, with clamping rings on both ends. To achieve optimal noise reduction, the corrugated pipe can be equipped with an expansion joint or mesh sleeve inside.

What is the working principle of the brake light switch?

The working principle of the brake light switch is that when the driver steps on the brake pedal, it presses down on the contact point of the brake light switch, thereby completing the brake light circuit and illuminating the brake light. When the brake pedal is released, the contact point of the brake light switch disconnects, turning off the brake light. The brake lights are usually installed at the rear of the vehicle, with the main brake light being red. The red color enhances the light's penetration, making it easier for following vehicles to discern the driving status. Since the brake light switch is a signal transmission switch, when the brake pedal is pressed, the brake light switch closes and simultaneously sends a level signal to the ECU. The ECU then processes this signal based on its frequency and sends a command to the ABS/EBD system, which determines whether to activate accordingly.

Trending Ranking

Are the Volkswagen Touareg and Audi Q8 based on the same platform?

How to Cool Down the Air Conditioning in Borgward BX5?

What is the valve clearance for the Geely Emgrand?

What does vehicle cruise control mean?

How to Set the Time on the Chery Tiggo 3 Dashboard?

What is the function of the anti-collision beam?

What is the difference between coating agent and waxing?

What does Leiling 185t mean?

What is a car VIN number?

Is Zhongyuan Bank ETC Nationwide?

More Forum Discussions

What is the difference between Crown Royal and Crown Crown?

What are the differences between the Chevrolet Cruze and Cavalier?

What are the dimensions of the Trumpchi GS4?

What are the body dimensions of the Mercedes-Benz S-Class?

Help

Cookie

Cookie Settings

© 2025 Servanan International Pte. Ltd.