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Your Vehicle  //  Porsche  //  Cayenne 9PA1 (957) 2007-2010  //  Any
PorscheCayenne 9PA1 (957) 2007-2010Electrical & Relays

Electronic Control Units

Electronic Control Units

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DISPLAYING 1 to 3 (of 3 products)
Control Unit Level Adjustment. Porsche Cayenne 957 - 95561830401
1
Control Unit Level Adjustment. Porsche Cayenne 957
Special Order item
95561830401
Product Information
Product Information
Control Unit Level Adjustment.

Fits:
Porsche Cayenne 957 3.6L 2007-09 (I1BK)
Porsche Cayenne 957 4.8L S 2007-09 (I1BK) (NOT for GTS)
Porsche Cayenne 957 4.8L Turbo / Turbo S 2007-09 (I1BK)

I1BK - For cars with Air Suspension with levelling system and height adjustment (PASM)

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

95561830401
95561830401

The product you are viewing cross references to these numbers
Seat position control unit. Porsche 955 Cayenne / 957 Cayenne - 95561874000
3
Seat position control unit. Porsche 955 Cayenne / 957 Cayenne
Special Order item
95561874000
Product Information
Product Information
Seat position control unit. For Cars with:
driver memory package (I3L4) and
12-way electrical adjustment for both front seats + memory (I3PN)

Fits:
Porsche 955 Cayenne 2003-06
Porsche 957 Cayenne 2007-10

Click 'Zoom in' for large parts diagram.
Diagram ref no 3

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

95561874000
95561874000

The product you are viewing cross references to these numbers
Steering Column Combination Switch Electronic Module Porsche Cayenne 2003-10 - 95561329101, 95561329200, 95561329201
3
Steering Column Combination Switch Electronic Module Porsche Cayenne 2003-10
Special Order item
95561329
Product Information
Product Information

Electronic module for the steering column combination switch fitted Cayenne models from 2003 to 2010. Suitability is determined by the vehicle specification and the listed PR codes. Please choose the non-heated version unless your Cayenne is coded to 2PH (Leather steering wheel for airbag system - 3 spokes, heated)

Fits

  • Porsche Cayenne 955 2003–2006
  • Porsche Cayenne 957 2007–2010

    Check fitment for your specific vehicle (model, year, engine) before ordering.

Diagram ref no 1

What This Product Does

This electronic unit forms part of the steering column combination switch assembly. It provides the module required for the assembly to process steering-column control inputs within the vehicle's electrical system.

Functions

  • Forms the electronic section of the steering column combination switch
  • Supports communication between applicable stalk controls and the vehicle electrical system
  • Integrates with the associated steering-column switch components

Technical Details

  • Genuine Porsche component
  • Part number: 95561329101
  • Diagram description: Electronic unit
  • Heated version option code: PR:2PH

Symptoms of Fault

  • Intermittent operation of steering-column controls
  • One or more stalk-operated functions failing to respond
  • Random or inconsistent indicator, wiper or lighting-control behaviour
  • Electrical faults that change with steering-column movement
  • Stored fault information relating to the steering-column switch assembly

Why Replacement Matters

A defective module can interrupt operation of functions controlled through the combination switch assembly. Diagnosis should also include the stalk switches, connectors, wiring, fuses and relevant control circuits, as similar symptoms can have several causes. Confirm the part number and PR codes against the vehicle's VIN and equipment data before replacement.

FAQs

  • Is this the complete steering column switch assembly?
    No. It is the electronic module within the combination switch assembly; associated stalk switches, housings and fixings are separate components.
  • Does it fit every 955 and 957 Cayenne?
    Yes but depends on the vehicle's PR codes and equipment specification.
  • How should compatibility be checked?
    Compare part number 95561329101/201 and the listed PR codes with the VIN-based Porsche parts information for the vehicle.
  • Can intermittent stalk faults confirm that this module has failed?
    No. Wiring, connectors, fuses, stalk contacts and other control components should also be tested.
  • Is coding or calibration required?
    Installation requirements can vary with vehicle equipment. Refer to the applicable Porsche workshop procedure or use a suitably equipped specialist.




Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

95561329
95561329101
95561329200
95561329201

The product you are viewing cross references to these numbers
DISPLAYING 1 to 3 (of 3 products)
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About Electronic Control Units

Electronic Control Units (ECUs) – Precision Performance and Reliability for Porsche Vehicles

Electronic Control Units (ECUs) are the brains of your Porsche’s electronic systems, managing and monitoring everything from engine performance to fuel delivery, ignition timing, transmission response, and emissions control. These highly sophisticated modules communicate with multiple sensors and actuators to ensure your car runs efficiently, safely, and smoothly under all driving conditions.

At Design911, we supply a wide range of genuine and high quality ECUs for Porsche models - including engine control units, transmission control modules, body control units, and more. Each ECU is manufactured to the highest standards, ensuring exact compatibility and seamless communication with your vehicle’s electronic architecture.

What Do Electronic Control Units Do?

An ECU acts as the central processor of a vehicle’s system, interpreting data from sensors and adjusting performance parameters in real-time. Depending on the application, ECUs can control:

  • Engine management: fuel injection, ignition timing, turbo boost, and air-fuel ratios.
  • Transmission systems: shift points, torque converter lock-up, and gear selection.
  • ABS and traction control: maintaining grip and stability.
  • Body systems: lighting, climate control, and interior functions.

Modern Porsche vehicles often contain multiple ECUs working together across a CAN bus network, ensuring optimal efficiency, emissions compliance, and driver comfort.

Why Do ECUs Fail?
Electronic Control Units are robust, but can fail due to age, environmental factors, or electrical faults. Common causes include:

  • Water ingress or corrosion: damaging internal circuits.
  • Voltage spikes or short circuits: caused by battery or alternator issues.
  • Thermal stress: from prolonged engine heat cycles.
  • Software corruption or data errors: due to low voltage or improper programming.
  • Connector and harness faults: causing poor communication with sensors.

Symptoms of ECU failure may include engine misfires, warning lights, poor performance, stalling, or failure to start.

Why replace your ECU?
A faulty ECU can cause unpredictable performance, poor fuel economy, and safety concerns. Replacing a malfunctioning unit restores the precision and reliability your Porsche was built to deliver.

Benefits of replacing with a quality ECU include:

  • Full compatibility with vehicle systems.
  • Restored factory performance and efficiency.
  • Elimination of warning lights and diagnostic faults.
  • Improved reliability and drivability.

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