Looking for a Porsche ABS pump, ABS control module, PSM module or complete ABS hydraulic unit?
Porsche vehicles use advanced braking and stability systems incorporating ABS (Anti-lock Braking System) and PSM (Porsche Stability Management). Depending on the model, these systems work together with traction control, electronic brake distribution and other chassis-control functions.
A faulty ABS hydraulic pump or electronic control module can cause ABS, PSM and traction control warning messages, hydraulic pump faults, pressure sensor faults and communication errors.
At AutoPulse247, we supply genuine used OEM Porsche ABS pumps, ABS control modules and complete ABS/PSM hydraulic units.
Our stock may include ABS pumps and control modules for:
Porsche 911, Boxster, Cayman, Cayenne, Macan, Panamera, Taycan and other Porsche models.
This includes various generations such as 911 996, 997, 991 and 992; Boxster 986, 987 and 981; Cayman 987 and 981; Cayenne 955, 957, 958 and newer models; Panamera 970 and 971; and Macan 95B.
Different ABS/PSM units can be fitted within the same model range, so always compare the complete part numbers before purchasing.
A faulty Porsche ABS pump or PSM control module may cause:
Porsche uses different ABS and PSM systems depending on the model and generation. Porsche-specific diagnostic equipment may therefore display manufacturer codes that differ from generic OBD-II descriptions.
Common ABS/PSM diagnostic areas include:
C0110 – ABS Pump Motor Circuit Fault
On applicable systems, this can indicate a hydraulic pump motor, electrical supply, wiring or internal ABS hydraulic unit problem.
C0121 – ABS Valve / Relay Circuit Fault
Can indicate a fault involving the ABS hydraulic valve system, relay, wiring or control unit.
C0131 – Brake Pressure Sensor / ABS Pressure Circuit Fault
Can be associated with brake pressure sensing, wiring or the hydraulic control unit depending on the system fitted.
C0031 / C0034 – Wheel Speed Sensor Circuit Faults
Usually associated with wheel speed sensors, wiring, connectors or wheel bearing encoder systems rather than the ABS pump itself.
C0037 / C003A – Rear Wheel Speed Sensor Circuit Faults
Can indicate a rear wheel speed sensor or signal problem depending on the ABS system.
U0121 – Lost Communication With ABS Control Module
Communication with the ABS/PSM control module has been lost. Possible causes include power supply, wiring, CAN Bus or internal module failure.
U0415 – Invalid Data Received From ABS Control Module
Another control module has detected invalid information originating from the ABS/PSM system.
Porsche-specific diagnostic tools such as PIWIS can provide additional manufacturer-specific PSM and ABS fault codes.
Not necessarily.
A PSM failure, PSM fault or ABS warning message does not automatically mean the ABS pump needs replacing.
Possible causes can also include:
If these external causes have been eliminated and diagnostics confirm an internal PSM module, hydraulic pump motor, pressure sensor or hydraulic control unit failure, repair or replacement may be required.
The Porsche Cayenne is particularly important when matching ABS units because several ABS/PSM versions were used across different generations.
This includes:
Cayenne 955
Cayenne 957
Cayenne 958 / 92A
Newer Cayenne generations
Cayenne ABS units can differ according to engine, drivetrain, production date, braking equipment and vehicle specification.
Some Cayenne generations also share platform technologies with vehicles such as the Volkswagen Touareg and Audi Q7. However, a physically similar ABS unit should not automatically be considered interchangeable because electronics, software, coding and hydraulic configuration can differ.
The Porsche Macan can use different ABS/PSM units depending on:
Always match the complete Porsche and manufacturer numbers before ordering a replacement.
Different ABS/PSM units are used across Porsche Panamera generations, including the 970 and 971.
A replacement unit that looks physically identical may have different electronics, software or coding.
For this reason, the original part number should always be checked.
ABS and PSM systems also vary considerably across different generations of Porsche sports cars.
This includes:
Porsche 911 – 996, 997, 991, 992
Porsche Boxster – 986, 987, 981, 718
Porsche Cayman – 987, 981, 718
Always identify the exact ABS/PSM unit using the original component label rather than purchasing solely by model or engine.
Do not choose a Porsche ABS unit based only on:
Model + engine + production year.
The original unit may carry several identification numbers, including:
Porsche part numbers often use formats such as:
955.xxx.xxx.xx
958.xxx.xxx.xx
970.xxx.xxx.xx
991.xxx.xxx.xx
9A1.xxx.xxx.xx
9Y0.xxx.xxx.xx
The exact format varies by model and generation.
Always compare the complete part number, including all suffixes and revisions.
Two ABS pumps can look identical while using different software, electronics or hydraulic configurations.
A replacement Porsche ABS/PSM unit may require:
Suitable Porsche-compatible diagnostic equipment may be required after installation.
AutoPulse247 supplies genuine used OEM Porsche ABS pumps, PSM control modules and complete ABS/PSM hydraulic units.
Search our store using your:
Porsche OEM part number, Bosch number, ATE/Continental number, ABS pump number or PSM control module number.
Matching all available numbers from your original unit is the safest way to identify the correct replacement.
Send us:
Your Porsche VIN + ABS/PSM fault codes + complete ABS part number + a clear photograph of the label on your original ABS/PSM unit.
We can use these details to help identify a suitable replacement from our available stock.
Important: ABS and PSM fault codes are provided for general diagnostic information. Exact definitions vary between Porsche models and ABS/PSM generations. A fault code alone does not confirm that the ABS pump or PSM module is defective. Proper diagnostic testing should always be performed before replacing braking-system components.
