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<h2>What does a transmission wire harness&nbsp;do?</h2>
A transmission wire harness is a specific type of wire harness or cable harness, designed for use in a vehicle's transmission system. It is not only responsible for transmitting electrical signals and power between various transmission components such as sensors, solenoids, actuators, and control modules. It is also necessary to ensure that signals related to gear selection, shift points, torque converter lock-up, and other transmission functions are transmitted and received correctly. Transmission wire harnesses for cars enable transmission systems to operate smoothly and efficiently by providing the necessary electrical connections. Additionally, transmission wire harnesses help protect wiring and electrical connections from damage, vibration, and interference. Overall, the transmission wire harness plays a vital role in facilitating the electrical communication and control required for the proper functioning of the vehicle's transmission system.
<h2>How to diagnose a broken transmission wire harness?</h2>
Diagnosing a damaged transmission wire harness&nbsp;requires a systematic approach to identify the underlying problem and determine whether the&nbsp;wiring harness&nbsp;is the source of the problem. Start by visually inspecting the transmission wire harness&nbsp;for any visible wear or looseness. If you cannot confirm, you can choose to take the following methods:
<ul>
<li>Test electrical continuity: Use a multimeter to check the electrical continuity of the transmission harness. If a faulty connection interruption is detected, it may be an object of concern.</li>
<li>Scan error codes: Connect an <a href="https://a-premium.com/collection/ob2-scanners">OBD II diagnostic scanner</a> or code reader to the vehicle. Check for any error codes associated with the transport system.</li>
<li>Perform functional tests: Perform functional tests of the drive system, such as engaging different gears and observing their response.</li>
</ul>
<h2>Superior transmission control&mdash;A-Premium transmission wire harness</h2>
A-Premium's transmission wire harness has excellent durability and anti-aging properties. It can work persistently under various harsh conditions, ensuring reliability and long life. When you are unsure which one is your proper choice, 24/7 quick response at your service.

Transmission Wire Harness

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Air Filter Box

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Air Flow Sensor

Air Intake Duct

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Air Intake Hose

Air Intake Manifold Actuator Control Solenoid

Air Intake Manifold Flap Adjuster

Air Intake Manifold Runner Control Sensor

Electric Vacuum Pump

Engine Air Duct Assembly

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Engine Air Filter

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Intake Manifold

Intake Manifold Flap Actuator

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Intercooler

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Oxygen Sensor

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Pressure Sensor

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Throttle Body

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Throttle Position Sensor

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Turbocharger

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Turbocharger Oil Line

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Vacuum Pump

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Air Filters & Intake Systems

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Camshaft Adjuster

Camshaft Adjuster Cover

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Camshaft Timing Gear

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Camshafts

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Engine Valve Cover

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Harmonic Balancer

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Timing Belt Kit

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Timing Chain Kit

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Timing Cover

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Timing-Control Valve Solenoid

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Valve Lifters Tappet

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Cams, Timing & Valvetrain

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Belt Tensioner

Coolant Level Sensor

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Crankcase Breather Hose

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Crankcase Breather Valve

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Crankshaft Position Sensor

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Engine Oil Dipstick Tube

Engine Oil Filter

Engine Oil Pan Gasket

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Flywheel

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Oil Cooler

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Oil Cooler Line

Oil Filler Cap

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Oil Filter

Oil Filter Base

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Oil Filter Housing

Oil Filter Housing Cover

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Oil Level Sensor

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Oil Pan

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Oil Pump

Oil Pump Drive Gear Shaft

Oil Pump Pickup Tube

Cranks, Pistons, Oil & Components

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Camshaft Position Sensor

Camshaft Position Sensor & Magnet Kit

Connector Plug

Distributor Cap

Engine Valve Covers & Ignition Coils Kits

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Glow Plug Relay Module

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Ignition Coil

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Ignition Coils & Spark Plugs Kits

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Ignition Distributor

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Ignition Starter Switch

Ignition Switch Actuator

Knock Detonation Sensor

Relay

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Spark Plug

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Spark Plug Wire

Electronic Control Modules, Ignition & Distributors

Engine Wiring Harness

Intake Manifold Repair Kit

Engine Components & Accessories

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Auxiliary Water Pump

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Expansion Tank

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Expansion Tank Mounting Plate

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Fuel Cooler

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Radiator

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Radiator Hose

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Radiator Support Assembly

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Temperature Sensor

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Turbo Hose

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Water Coolant Pipe

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Water Outlet

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Engine Cooling

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Engine Mount

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Engine Mounts

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Catalytic Converter

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EGR Valve

Emissions Fluid Pump

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Exhaust Fluid Heater

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Exhaust Gas Temperature Sensor

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Exhaust Manifold

Fuel Tank Breather Valve

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Fuel Vapor Leak Detection Pump

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Nitrogen Oxide Sensor

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Secondary Air Injection Check Valve

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Vapor Canister Vent Solenoid

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Exhaust & Emission Systems

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Fuel Filter

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Fuel Injection Control Module

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Fuel Injection Pressure Regulator

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Fuel Injector

Fuel Injector Kit

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Fuel Injector Module Wiring Harness

Fuel Line Kit

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Fuel Pump

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Fuel Sending Unit

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Fuel Tank Filler Neck Pipe

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Fuel Tank Strap

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High Pressure Fuel Pump

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Idle Air Control Valve

Mechanical Fuel Pump

Oil Pressure Relief Valve

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Fuel Systems & Components

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The engine comprises many essential elements such as the lower cylinder block, upper cylinder head(s), and the cooling & lubricating systems. With A-Premium aftermarket engine components, you can expect that your engine deliver years of reliable performance. We offer a diverse selection of engine components from air filters and ignition coils (kits) to fuel pumps to cater to your needs.

2018 Audi S7 Transmission Wire Harness