Simos 33a Pinout Top < 2025 >

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: K-Line at Pin 43 is the primary method for Simos 3.3A/3.4A ECUs.

Pin numbering conventions vary. Always confirm whether the diagram is a (looking at the connector pins) or a bottom view (looking at the PCB). The wrong convention can lead to incorrect connections. simos 33a pinout top

Always compare your (e.g., 06A 906 018 GR, 037 906 025 G) against a vehicle-specific wiring diagram.

Connector: SIMOS 33A — Top row (pin numbering left-to-right when viewing the ECU mating face with locking tab up). Pins are shown as: Pin number — Signal / Typical function — Notes This public link is valid for 7 days

On most SIMOS 33A ECUs:

Carefully slice through the perimeter factory sealant with a razor knife. Can’t copy the link right now

Connect to Pin 2 . For high-speed data stability, it is also recommended to tie Pin 28 directly to your ground source. 🌐 Data Communication Pins