VW Passat B7 CC Kessy Entry & Start Control Module 3AA905107B - Used Original Parts

Description

Product Title

VW Passat B7 CC Kessy Entry & Start Control Module 3AA905107B - Used Original Parts

Diagnosis and Common Symptoms

From a workshop perspective, failure of the J518 Access/Start Authorization Control Module (Kessy) presents a distinct set of electronic faults that can immobilize the vehicle. The primary symptoms manifest as a complete or intermittent breakdown in communication between the vehicle's key fob and the immobilizer system. Drivers will often report a "Key Not Recognized" or "Key Not Found" message on the instrument cluster, even with a new key battery.

Functionally, this leads to the push-to-start button becoming unresponsive or only working sporadically. The keyless entry feature, which allows unlocking by touching the door handles, will typically cease to function. In severe cases, the vehicle will not crank, and you may hear a rapid clicking from relays without engine start. A diagnostic scan will often reveal specific fault codes stored in the Central Electrics (09) or Access/Start Authorization (05) modules.

Common Diagnostic Trouble Codes (DTCs):

• 00166 - Access / Start Authorization Switch (E415)
• 01179 - Incorrect Key Programming
• 0288 - Steering Column Lock Actuator (N360) - Defective
• No Communication with J518 Access/Start Control Module

Introduction

Restore full functionality to your vehicle's keyless system with this genuine, pre-owned VW Kessy Entry & Start Control Module. Each unit is rigorously bench-tested by our technicians to ensure it meets factory specifications for communication and operation. This module provides a direct, reliable replacement for a faulty original, saving you significant cost without compromising on quality or system integration.

Product Details

• Brand: Volkswagen
• Model Compatibility: Passat B7 / Passat CC
• Part Name: Kessy Entry & Start Control Module J518
• Part Number: 3AA 905 107 B
• Condition: Genuine Used (Tested Working)
• Notes: This module is a core component of the vehicle's immobilizer system. Professional installation, including component protection removal and key adaptation via specialized diagnostic tools (e.g., ODIS), is required. Please verify the part number matches your vehicle's original module before purchase.

Frequently Asked Questions

Q: What symptoms indicate failure? A: The most common signs are "Key Not Recognized" errors, an inoperative push-to-start button, non-functional keyless door entry, and intermittent or complete failure to start the engine.

Q: Does this require coding? A: Yes. As part of the vehicle's security system, this module must be professionally coded to your vehicle. This process involves online adaptation for component protection and synchronizing your existing keys.

Q: Is this original? A: Absolutely. This is a genuine Volkswagen part, carefully removed from a donor vehicle and fully tested by our technical team. We only supply authentic, vehicle-manufacturer components.

Why Choose Us?

• Verified functionality
• Actual photos/videos provided
• 30-day exchange warranty
• Component-level testing to ensure stable power regulation and CAN bus communication

Shipping

Location: Kuala Lumpur, Malaysia Shipping: West Malaysia RM50 (Estimate) / East Malaysia RM80 (Estimate) Delivery: 1-2 working days Packaging: Secure anti-static packaging, heavy-duty shock absorption. (We send actual photos/videos of the unit and packaging before shipping)

Warranty and Return Policy

• 30-day exchange warranty from the date of receipt.
• Proof of professional installation by a qualified workshop is required for warranty claims.
• No returns if the item is opened, modified, tampered with, or damaged due to incorrect electrical wiring.
• Exchange only for confirmed internal electronic defects.

How to Order

1. WhatsApp us to confirm compatibility with your specific VIN.
2. Send your chassis number or a clear photo of your old unit label.
3. Confirm order details and stock availability.
4. Receive actual product photos and diagnostic test confirmation.
5. Make payment via bank transfer.
6. Item is shipped immediately with tracking details provided.

Contact Us

William – https://wa.me/60102992988 Lok – https://wa.me/60177720143

Price Notice

Price is estimated only. Actual price depends on current stock levels, specific part number revisions, and unit condition. Please WhatsApp us for a formal quote.

Compatible Models