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B188A13 — Center brake/tail lamp bulb, Open circuit

Center brake/tail lamp bulb, Open circuit. 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 B188A13

Porsche Taycan

Comfort System Module

Porsche 911 (992)

BCM2 (Body Control Module 2)

Porsche Panamera (971, 2017–2023)

BCM2 (Body Control Module 2)

Porsche Panamera (972, 2024–)

BCM2 (Body Control Module 2)

Porsche Cayenne (9YA)

BCM2 (Body Control Module 2)

How to read and clear B188A13

  1. Plug a standard ENET (Ethernet-to-OBD) cable into your Porsche's OBD port and your Mac or Windows PC.
  2. Open STEUER14, pick your car and run a fault scan: every control unit is read, and B188A13 shows with its status, its full description and the freeze frame when the unit stores one.
  3. 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 reading

Other codes of the Comfort System Module

B187F11Center tail lamp bulb, Short circuit to ground
B187F12Center tail lamp bulb, Short circuit to B+
B187F13Center tail lamp bulb, Open circuit
B187F15Center tail lamp bulb, Open circuit/short circuit to B+
B188A11Center brake/tail lamp bulb, Short circuit to ground
B188A12Center brake/tail lamp bulb, Short circuit to B+
B188A15Center brake/tail lamp bulb, Open circuit/short circuit to B+
B188B11Center tail lamp, Short circuit to ground
B188B12Center tail lamp, Short circuit to B+
B188B13Center tail lamp, Open circuit
B188B15Center tail lamp, Open circuit/short circuit to B+
B18C511Lighting for front lid emergency release button – short circuit to ground

All 616 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.