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Fitment notes: Auxiliary 12V battery; main traction battery is 100 kWh lithium-ion EV battery pack; 12V battery located in front trunk (frunk)
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Every control module on the 2024-2026 Porsche Macan Electric — where it lives, replacement time, and what it takes to program a replacement. Modules marked dealer / factory tool won't work after a part swap alone — budget for programming.
📍 Integrated into high-voltage battery pack, underbody center tunnel
🔧 Porsche PIWIS 4 + PPN online
⚠️ Requires battery pack removal for access; high-voltage certification required. Coding includes cell balancing calibration and capacity learning. Battery pack R&R is 8+ hours; BMS itself adds minimal time if pack is already out.
Transmission Control Unit (TCU)3.0 hr R&Rsecurity gateway +0.8 hr▸ programming details
📍 Rear motor housing, integrated with rear electric drive unit
🔧 Porsche PIWIS 4 + PPN online
⚠️ Controls rear electric motor and single-speed transmission; requires high-voltage lockout. Some variants may have dual-motor configuration with front TCU as well.
High Voltage Control Unit (HVCU)2.5 hr R&Rsecurity gateway +1.0 hr▸ programming details
📍 Front trunk (frunk), left side near high-voltage junction box
🔧 Porsche PIWIS 4 + PPN online
⚠️ Controls electric motor and inverter; requires high-voltage safety lockout and discharge procedure before removal. Component protection tied to VIN and battery serial.
Electric Power Steering Control Unit (EPS)2.0 hr R&Rsecurity gateway +0.8 hr▸ programming details
📍 Steering column, integrated with steering assist motor
🔧 Porsche PIWIS 4 + PPN online
⚠️ Requires steering angle sensor calibration and road test after replacement. Torque sensor learning procedure mandatory.
Climate Control Unit (CCU)1.8 hr R&Rdealer / factory tool +0.3 hr▸ programming details
📍 Dashboard center, behind HVAC control panel
🔧 Porsche PIWIS 4
⚠️ Heat pump system on electric vehicle; requires refrigerant recovery and recharge. Basic coding possible offline.
Seat Memory Control Unit - Passenger (SMC-R)0.8 hr R&Rdealer / factory tool +0.3 hr▸ programming details
📍 Passenger seat, under seat base right side
🔧 Porsche PIWIS 4
Tire Pressure Monitoring System Control Unit (TPMS)relearn only +0.2 hr▸ programming details
📍 Integrated into ABS/PSM module
🔧 Porsche PIWIS 4 or TPMS relearn tool
⚠️ Direct TPMS with sensors in each wheel. Sensor ID relearn required after tire service or sensor replacement. No separate module R&R.
Aftermarket tool coverage varies by software version and vehicle build — treat "aftermarket tool" rows as "usually possible" and verify against your tool maker's coverage list before promising a customer. Spot a wrong location or hour? Tell us — corrections ship fast here.
Size-standard part numbers — verify your connector type before buying. Rear blades are model-specific; check the package's vehicle list.
Fuel economy figures are EPA data via fueleconomy.gov (median across matching trims). Performance figures are compiled estimates for the 2026 Porsche Macan Electric Electric and can vary by trim.
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota Mechanic · 20+ years.