Switches / Selector Switches

Gear select switch / reverse light switch.



Fits:
Porsche 996 1998-05 Tiptronic Cars ONLY
Porsche 987 Boxster 2005-08 Tiptronic Cars ONLY
Porsche 987C Cayman 2006-08 Tiptronic Cars ONLY
Porsche 997 Cayman 2005-08 Tiptronic Cars ONLY

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Related, superseded, cross reference or alternative numbers for comparison.

99661321210

The product you are viewing cross references to these numbers

Gear selector multi plug switch.
High-quality replacement gear selector multi-plug switch (also known as gear position switch or multifunction switch) for Porsche vehicles equipped with Tiptronic automatic transmissions. This switch is mounted on the exterior of the gearbox and communicates the driver’s shift-lever position to the transmission control unit and vehicle electronics. Without accurate sensor feedback, you may experience shifting faults, “Tiptronic emergency mode,” or incorrect gear markings in the instrument cluster.

Fits:
Porsche 996 >>2001 Tiptronic
Porsche 986 Boxster 1997 - 2004 Tiptronic
Porsche 987 Boxster 2005 - 2008 Tiptronic
Porsche 987C Cayman 2006 - 2008 Tiptronic

Diagram ref no 1

• Position on Vehicle: External gearbox sensor/switch mounted on the automatic transmission housing behind the lever mechanism.

• Cross-Reference / Alternative Numbers: 986 325 612 00,  986 325 612 01, 986 325 612 02;   Current reference: 986 325 612 03.

When this switch fails or wears out, symptoms can include:
• Dash shows incorrect gear or flashes D/N warning
• Transmission stuck in “emergency” or shifts only to first gear PFF +1
• Passing-off codes from PIWIS or similar diagnosing tiptronic position errors
• Rough shifting or TIP-tronic mode faults

Replacing the switch with a correctly unit restores the gear-lever-to-transmission interface, prevents costly error codes or limp mode and ensures full Tiptronic function.

When to replace:
•  If you are experiencing Tiptronic mode failures or error messages
•  On a high-mileage Boxster/996 with automatic gearbox and selector faults
•  During transmission servicing when the external switch is accessible.

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Related, superseded, cross reference or alternative numbers for comparison.

98632561203

The product you are viewing cross references to these numbers

Gear selector multi plug switch. 

Fits:
Porsche 996 >>2001 Tiptronic
Porsche 986 Boxster 1997 - 2004 Tiptronic
Porsche 987 Boxster 2005 - 2008 Tiptronic
Porsche 987C Cayman 2006 - 2008 Tiptronic

Diagram ref no 1


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

98632561203

The product you are viewing cross references to these numbers

PDK Distance & Speed Sensor for 7-Speed PDK

A direct replacement internal PDK distance and speed sensor assembly for Porsche models equipped with the 7DT45 or 7DT70 7-speed PDK transmission. The sensor combines the distance and speed sensing components with the wiring harness and OEM-style connector in an integrated assembly, allowing the faulty original unit to be removed and replaced without modifying or splicing the wiring..

Fits:
Porsche 987.2 Boxster  2009 - 2012
Porsche 981 Boxster 2012 - 2016
Porsche 981 Boxster Spyder 3.8L 2016
Porsche 718 (982) Boxster  2017>>

Porsche 987C.2 Cayman 2009 - 2012
Porsche 981 Cayman 2013 - 2016
Porsche 718 (982) Cayman 2017>>
Porsche 718 (982) GT4 4.0L 2019>>

Porsche 997.2 2009 - 2012
Porsche 991.1 2012 - 2016
Porsche 991.2 2017 - 2019

Designed to address common internal PDK sensor failures that can cause transmission warning messages, fault codes, limp mode and loss of normal transmission operation.

What Does the PDK Distance & Speed Sensor Do?

The Porsche PDK transmission relies on internal sensors to monitor the position and movement of its shift mechanisms.

These signals allow the PDK control system to determine which gears are selected and accurately control gear engagement. If the sensor produces an incorrect, intermittent or implausible signal, the transmission control unit may no longer be able to reliably determine the position of the relevant shift rod.

This can trigger fault codes, dashboard warnings or transmission failsafe/limp mode.

Common Symptoms of PDK Sensor Failure

A failing distance or speed sensor may cause:

• PDK transmission warning messages
• Transmission entering limp or failsafe mode
• Loss of normal gear selection
• Difficulty selecting particular gears Loss of reverse gear
• Intermittent transmission operation
• Vehicle becoming undrivable
• “Transm. fault Poss. no R gear…” or similar dashboard warnings
• Stored PDK transmission fault codes

These symptoms can have other causes, so correct diagnostic testing should always be carried out before replacing the sensor.

Why Replace the Sensor Instead of the Complete PDK Transmission?

An internal sensor fault does not necessarily mean that the complete PDK gearbox has mechanically failed.

Where professional diagnosis confirms that the distance/speed sensor is responsible for the fault, replacing the defective internal sensor can provide a significantly more economical repair than replacing the complete transmission.

This makes the sensor particularly valuable for Porsche specialists and transmission repairers carrying out component-level PDK repairs.

New Integrated Sensor Assembly

The sensor is supplied as a brand-new component and is not used, salvaged or remanufactured.

Its integrated construction incorporates the sensor harness and OEM-style plug, eliminating the need to splice or modify the wiring during installation.

The housing is precision CNC-machined from aluminium alloy to provide excellent thermal stability and resistance to the high temperatures, vibration and demanding operating conditions found inside the PDK transmission.

Technical Design Features

The sensor incorporates several features designed to provide accurate and stable operation:

• Integrated sensor and wiring harness assembly
• No wiring modification or splicing required
• Dual-axis induction design
• Designed for strong resistance to electrical interference
• Automotive-grade integrated electronics
• Centralised chip layout for stable signal transmission
• 0.2mm ultra-thin PEEK sensing window
• Designed to minimise eddy-current effects
• CNC-machined aluminium alloy housing
• Improved resistance to heat and vibration
• Designed to address heat-related deterioration associated with original sensors

Common Porsche PDK Fault Codes

A failed distance sensor can be associated with a number of Porsche PDK diagnostic trouble codes, including:

• P1731 – Displacement Sensor Shift Rod Gears 4/6: Implausible Signal
• P1732 – Displacement Sensor Shift Rod Gears 5/7: Implausible Signal
• P1733 – Displacement Sensor Shift Rod Gears 1/3: Implausible Signal
• P1734 – Displacement Sensor Shift Rod Gears 2/R: Implausible / Incorrect Signal
• P1735 – Distance Sensor Shift Rod Gears 4/6: Short-Term Fault
• P1736 – Distance Sensor Shift Rod Gears 5/7: Short-Term Fault
• P1737 – Distance Sensor Shift Rod Gears 1/3: Short-Term Fault
• P1738 – Distance Sensor Shift Rod Gears 2/R: Short-Term Fault

The presence of one of these codes does not automatically confirm sensor failure. The transmission should be professionally diagnosed before parts are replaced.

Compatible PDK Transmissions

• 7DT45 7-speed PDK
• 7DT70 7-speed PDK

Not compatible with Porsche 911 992 models, as the 992 generation does not use the 7DT45 or 7DT70 PDK transmission.

Transmission type should always be confirmed before ordering, as model designation alone does not guarantee compatibility.

Professional Installation Required

Replacement of internal PDK sensors is a specialist procedure and should not be considered a simple DIY repair.

Installation should be carried out by an experienced Porsche or PDK transmission specialist with the appropriate diagnostic equipment.

Correct diagnosis, installation, calibration and programming are essential to ensure the transmission operates correctly after replacement.

PDK Distance & Speed Sensor Replacement

PDK transmission problems can sometimes result in owners being advised that a complete gearbox replacement is required. However, when diagnostic testing identifies an internal distance or speed sensor as the source of the problem, component-level repair may provide a considerably more cost-effective solution.

Replacing the faulty sensor allows a qualified transmission specialist to repair the affected part of the PDK system without automatically replacing an otherwise serviceable transmission.

For Porsche 997, 991, 987, 981 and 718 models equipped with compatible 7DT45 or 7DT70 transmissions, this replacement sensor provides a purpose-designed solution for repairing confirmed internal PDK sensor faults.

Boxster / Cayman PDK Distance & Speed Sensor

The Porsche PDK Distance and Speed Sensor is a critical component in the dual-clutch transmission system of the Boxster / Cayman. It continuously supplies the transmission control unit (TCU) with real-time position data of the gear shift rods and wheel/turbine speed. This data ensures precise gear engagement, fast shifts and smooth driving performance in everyday and high-load conditions.

Fits:

• Porsche Boxster 987 MKII 2.9L 2009-12
• Porsche Boxster S 987 MKII 3.4L 2009-12
• Porsche Boxster 981 2.7L 2012-16
• Porsche Boxster 981 S / GTS 3.4L 2012-16
• Porsche Boxster 981 Spyder 3.8L 2016
• Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
• Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
• Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
• Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
• Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
• Porsche Boxster Spyder / Spyder RS 718 4.0L 01/2019>>
• Porsche Boxster 25 Years 718 4.0L PDK (400 Bhp) 01/2020>>
• Porsche Cayman 2.9L 987C MKII 2009-12
• Porsche Cayman S / R 3.4L 987C MKII 2009-12
• Porsche Cayman 2.7L 981 2013-16
• Porsche Cayman S / GTS 3.4L 981 2013-16
• Porsche Cayman GT4 3.8L 2015-16
• Porsche Cayman 718 2.0L PDK (300 Bhp)
• Porsche Cayman S 718 2.5L PDK (350 Bhp)
• Porsche Cayman T 718 2.0L PDK (300 Bhp)
• Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
• Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
• Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L

The sensor combines the distance and speed sensing components with the wiring harness and OEM-style connector in an integrated assembly, allowing the faulty original unit to be removed and replaced without modifying or splicing the wiring.

Boxster / Cayman PDK Distance & Speed Sensor

The PDK distance and speed sensor is a critical component within the Porsche dual-clutch transmission.

It supplies the transmission control unit (TCU) with the information required to determine the position and movement of the internal gear shift mechanisms and monitor transmission speed. This information allows the PDK system to accurately control gear engagement and deliver the fast, smooth shifts expected from the Porsche dual-clutch transmission.

Without accurate sensor information, the PDK control system may no longer be able to determine gear position or transmission speed correctly. This can cause incorrect gear selection, transmission warning messages or the gearbox entering a protective limp mode.

Please Note – Boxster/Cayman Specific Sensor

The PDKDS/1 and PDKDS/2 sensors are designed for different Porsche PDK transmission layouts and should not be treated as interchangeable components.

The Boxster/Cayman transmission layout is effectively a mirror image of the equivalent 911 gearbox arrangement, meaning the sensor is installed in the opposite orientation.

Some universal aftermarket sensors can be physically flipped for use with different transmission layouts. However, the sensing technology used within the OE Match sensor requires its internal sensing elements to remain correctly positioned in relation to the transmission components.

For this reason, dedicated sensor versions use different internal orientations to suit their intended gearbox.

Using a purpose-designed Boxster/Cayman sensor allows its output to be calibrated more accurately for the transmission layout, helping provide correct signal interpretation, straightforward calibration and reliable operation.

Why Do PDK Distance & Speed Sensors Fail?

PDK transmission sensors operate in a demanding environment where they are continuously exposed to heat, vibration and repeated transmission operation.

Over time, the sensor or its associated electronics can deteriorate.

Common causes of failure can include:

• Prolonged exposure to high transmission temperatures
• Constant vibration and thermal cycling
• Electrical connection or wiring deterioration
• Internal electronic component failure
• Age and mileage-related deterioration
• Contaminated or degraded transmission fluid
• Repeated high-load transmission operation

When the sensor begins providing incorrect, intermittent or missing information, the transmission control unit can detect that the signals are outside their expected range and store a fault code.

Common Signs of PDK Sensor Failure

Possible symptoms include:

• PDK gearbox warning displayed on the dashboard
• Transmission entering limp or failsafe mode
• Gearbox becoming stuck in a particular gear
• Difficulty selecting gears
• Loss of normal gear selection
• Jerky or delayed gear changes
• Intermittent transmission operation
• Vehicle becoming difficult or impossible to drive
• Stored transmission fault codes

Possible diagnostic codes can include P1731, P1732, P1733 and P1734 relating to shift-rod displacement sensor signals.

Other transmission-related codes may also be present depending on the nature of the fault.

A diagnostic trouble code alone should not be considered confirmation that the sensor has failed. Professional diagnosis should always be carried out before replacement.

Why Replace the PDK Sensor?

A PDK transmission fault does not necessarily mean that the complete gearbox has mechanically failed.

If professional diagnostic testing confirms that an internal distance or speed sensor is responsible, replacing the faulty sensor provides a targeted repair rather than automatically replacing an otherwise serviceable transmission.

This can substantially reduce the cost of repairing certain PDK faults while retaining the original transmission.

Replacing a confirmed faulty sensor can help:

• Restore correct gear-position information
• Restore normal transmission operation
• Resolve relevant PDK warning messages
• Prevent repeated limp-mode events
• Restore smooth and predictable gear selection
• Avoid unnecessary complete gearbox replacement where the transmission itself remains serviceable

Quality Replacement Sensor for Porsche PDK Transmissions

The OE Match PDK distance and speed sensor is designed specifically for compatible Porsche Boxster and Cayman PDK applications.

Supplied as an integrated assembly with the appropriate harness and connector, it provides a purpose-designed replacement for the original internal sensor.

The dedicated internal orientation is particularly important on Boxster and Cayman applications because of the different transmission layout compared with rear-engined Porsche models.

Compatibility is determined by the transmission fitted to the vehicle. The transmission type and sensor version should always be confirmed before ordering.

Professional Installation Required

Replacement of an internal PDK distance and speed sensor is a specialist transmission repair and is not recommended as a DIY procedure.

Installation should be carried out by an experienced Porsche or PDK transmission specialist with suitable diagnostic equipment.

Correct diagnosis, installation, calibration and programming are essential before returning the vehicle to service.

Porsche Boxster & Cayman PDK Distance and Speed Sensors

PDK distance and speed sensor failure can result in warning messages, incorrect gear selection, limp mode and other transmission problems on Porsche Boxster and Cayman models.

Where professional diagnosis confirms an internal sensor fault, replacing the affected component can provide a considerably more economical solution than replacing the complete PDK transmission.

For Porsche 987, 981 and 718 Boxster/Cayman models fitted with compatible 7DT45 or 7DT70 transmissions, a dedicated sensor designed for the correct gearbox orientation provides a targeted solution for component-level PDK repair.