VW Audi 10-Pin Diagnostic Wire Harness Connector – OEM 1241547-1

The OEM 1241547-1 is a 10-pin female connector used in Volkswagen and Audi diagnostic harnesses and control module wiring. This high-density connector integrates multiple signal and power circuits for ECU, TCM, or body control module diagnostic interfaces on VAG Group platforms. Available bare or with 15cm pre-wired leads.

Key Specifications

Why Diagnostic Harness Connectors Fail

Control module diagnostic connectors on VW and Audi platforms are subject to repeated plug/unplug cycles during workshop diagnostics, vibration, and moisture ingress near the firewall. Terminal oxidation or housing damage causes intermittent module communication faults, U-code CAN bus errors, or diagnostic tool connection failures. Replacing the connector restores clean module communication and diagnostic interface integrity.

Variant Guide

• Female – Bare 10-pin housing with terminals
• Female 15CM – Pre-wired with 15cm leads for direct splice-in installation

Installation Steps

1. Disconnect the vehicle battery
2. Locate the 10-pin diagnostic connector on the ECU, TCM, or BCM harness
3. Use a terminal extraction tool to remove terminals from the original housing
4. Transfer terminals to the new 1241547-1 housing maintaining exact pin positions
5. Reconnect and use VCDS or OBD11 to verify module communication and clear fault codes

Frequently Asked Questions

Q: What VW and Audi models use OEM 1241547-1?
A: This connector is used across multiple VAG Group platforms including VW Golf, Passat, Tiguan, and Audi A3, A4, A6 control module harnesses. Cross-reference your vehicle’s wiring diagram to confirm fitment.

Q: What fault codes indicate a failed diagnostic harness connector?
A: Common codes include U0100 (lost communication with ECM), U0101 (lost communication with TCM), and U-codes for CAN bus communication faults on VAG diagnostic systems.

Q: Can I use VCDS to diagnose this connector?
A: Yes. VCDS (VAG-COM Diagnostic System) and OBD11 can read VAG module fault codes and confirm connector-related communication faults.

Q: Are terminals included?
A: Yes, terminals are included with all variants.

Compatible Applications

• VW Golf / Passat / Tiguan – ECU/TCM diagnostic harness
• Audi A3 / A4 / A6 – Control module connector
• VAG Group BCM and body control harness applications