Porsche 997 987 Anti-Theft Immobilizer Control Module - Used Original Parts

Diagnosis and Common Symptoms

From the workshop floor, the immobilizer control module in the 997 and 987 chassis is a frequent point of failure, almost exclusively due to water ingress. The module's location under the driver's seat makes it highly susceptible to damage from clogged convertible top or sunroof drains. Initial symptoms are often intermittent, progressing to a complete no-start condition.

On a diagnostic level, a scan tool will typically be unable to establish communication with the immobilizer module. The DME (Engine Control Module) will log critical faults such as "Immobilizer signal not plausible" or "Key not recognized." On the dashboard, expect to see warnings like "Key Not Found" or "Immobilizer Active," even with a known-good key.

Common Failure Indicators:

• Complete no-crank, no-start condition.
• Remote key fob fails to lock or unlock the doors.
• Interior lighting and window control becomes erratic or non-functional.
• The alarm system may trigger randomly or fail to arm.
• Physical inspection reveals corrosion on the module's casing or connector pins.

Introduction

This is a Genuine Porsche Anti-Theft Immobilizer Control Module, meticulously removed from a donor vehicle. Each unit has undergone rigorous bench-testing by our technicians to verify communication and full operational integrity. It serves as a reliable and cost-effective solution to restore your vehicle's security and starting systems without the expense of a new-from-dealer part.

Product Details

• Brand: Porsche
• Model Compatibility: Porsche 911 (997) & Porsche Boxster / Cayman (987) | Approx. 2005-2012
• Part Name: Anti-Theft Immobilizer Control Module / PAS Control Unit
• Condition: Genuine Used (Tested Working)
• Notes: This module is vehicle-specific and contains critical immobilizer data. It is not plug-and-play. Professional installation and programming (cloning data from your original module) are mandatory for function.