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B1B9600 — Undervoltage due to short drop strategy - active
Undervoltage due to short drop strategy - active. The Taycan, 911 (992), Panamera (971), Panamera (972) and Cayenne report this code; below is which control unit sets it on each model and how to read and clear it.
Which models and control units set B1B9600
How to read and clear B1B9600
- Plug a standard ENET (Ethernet-to-OBD) cable into your Porsche's OBD port and your Mac or Windows PC.
- Open STEUER14, pick your car and run a fault scan: every control unit is read, and B1B9600 shows with its status, its full description and the freeze frame when the unit stores one.
- Fix the cause first, then clear the fault memory and scan again to check it stays away. Reading and clearing fault codes is free on every control unit.
More about fault memory in the manual →
Download STEUER14 — free fault readingOther codes of the Door Module, Driver
| B1AB111 | Lighting in front door, pin D3 - short circuit to ground |
| B1AB113 | Lighting in front door, pin D3 - open circuit |
| B1AB311 | Lighting in front door, pin C1/B3 - short circuit to ground |
| B1AB313 | Lighting in front door, pin C1/B3 - open circuit |
| B1AB511 | Lighting in front door, pin D16 - short circuit to ground |
| B1AB513 | Lighting in front door, pin D16 - open circuit |
| B200042 | Control unit – function restriction |
| B200500 | Coding |
| B201200 | Coding |
| B201D00 | Function restriction, From incorrect signature |
| C111829 | Lane change assistance button, Implausible signal |
| U101100 | Supply voltage – too low |
All 107 codes of this control unit →
Fault names come from the manufacturer's diagnostic data. STEUER14 is independent and not affiliated with Porsche AG. A code tells you what a control unit detected, not always which part failed — check wiring, supply voltage and related codes before replacing parts. STEUER14 shows each fault's full description, status and freeze frame on the car.