Porsche – ECU Repair Doctor

💡 Porsche PSM / ABS Control Module Repair

The Porsche Stability Management (PSM) / ABS control module is a well-documented failure point on the Cayenne, Panamera, and Macan. We repair these modules at the component level as a cost-effective alternative to a full replacement unit.

❓ What Is the PSM/ABS Module?

PSM (Porsche Stability Management) integrates ABS, traction control, and electronic stability control through a shared hydraulic pump and control module. When the module or its pump fails, it commonly triggers PSM, ABS, and Electronic Parking Brake (EPB) faults simultaneously.

✅ Panamera ABS/PSM module (2014-2021 platform)
✅ First-generation Panamera (2010-2016) ABS pump and control module
✅ First-generation Cayenne (2003-2010) ABS/PSM system
✅ Macan PSM system (wheel-speed-sensor-related faults most common)

⚠️ Common Causes of Failure

✅ Internal Pump/Module Wear – the ABS pump and control module on early Panamera and Cayenne models are prone to internal failure with age.
✅ Wheel Speed Sensor Corrosion – sensor wiring corrosion or damage feeds bad data to the module and can trigger a false module fault.
✅ Weak Battery / Low Voltage – can trigger simultaneous ABS and PSM warnings even when the module itself is healthy.
✅ Brake Light Switch Faults – an intermittent or misadjusted switch can cause intermittent PSM warnings that mimic a module failure.

⚠️ Symptoms of a Failed Module

✅ PSM, ABS, and Electronic Parking Brake warning lights appearing together
✅ “Steering Lock” or chassis system faults appearing alongside PSM/ABS codes
✅ Loss of stability control and traction control
✅ Reduced braking assist or firmer-than-normal brake pedal
✅ Faults that reset temporarily after a battery disconnect, then return

If you’re seeing any of the above, mail your module in for diagnosis — don’t pay for a full dealer replacement first.

💻 Our Repair Process

✅ Diagnostic testing to confirm module failure vs. wheel-speed-sensor or wiring fault
✅ Component-level repair of damaged solder joints, drivers, and pump-motor circuits
✅ Data recovery and reprogramming to factory settings
✅ Bench testing to verify full functionality before return
✅ Plug-and-play return — a replacement module normally requires PIWIS programming to your VIN, ours is cloned to your original module data so no dealer visit is required in most cases

✅ Why Choose ECU Repair Doctor

✅ Component-level repair, not just a fault-code reset
✅ Avoids the PIWIS VIN-programming step a replacement module requires
✅ Same-day/next-day turnaround
✅ Mail-in service, anywhere in Canada
✅ Warrantied repair

🚗 Supported Models

✅ Porsche Cayenne (1st and 2nd generation)
✅ Porsche Panamera
✅ Porsche Macan

📞 Get a Quote

Call or text 647-784-9939, or see Contact for mail-in shipping instructions. Ship to 76 Sherry Road, Unit H, Scarborough, Ontario.

Sources referenced during research: go-parts.com Porsche Panamera ABS/PSM module guide (2014-2021), youcanic.com Porsche PSM failure troubleshooting, paradise-performance.com Porsche PSM failure guide, rennlist.com Panamera PSM/ABS/EPB fault discussion.