Simos 33a Pinout Top !!install!! Site

Simos 3.3A

For the Siemens (often labeled with part number 06A 906 033 A ) found in VAG vehicles like the Audi A3 1.6i, the "top" or bench pinout is primarily used for reading pincodes, IMMO OFF procedures, or cloning. Simos 3.3A Bench Pinout

Tool Compatibility:

Modern tools like the KT200II can occasionally experience freezing or "not responding" errors when communicating with older Simos units in bench mode. Expert Tip simos 33a pinout top

Note: Pins may be arranged on two rows (1-16, 17-32) or (1-20, 21-40) depending on plastic housing revision. Simos 3

• Crankshaft position sensor (CKP)
• Camshaft position sensor (CMP)
• Engine speed sensor (ESS)
• Fuel pressure sensor (FPS)
• Boost pressure sensor (BPS)
• Coolant temperature sensor (CTS)
• Intake air temperature sensor (IATS)

This ECU is commonly found in late 1990s to early 2000s Volkswagen Group vehicles (Volkswagen, Audi, Seat, Skoda) with 1.4L, 1.6L, and 1.8L naturally aspirated (non-turbo) engines, such as the Polo, Golf Mk4, Lupo, Fabia, Ibiza, and A2. This ECU is commonly found in late 1990s

SIMOS 33A pinout

While the SIMOS family is robust, issues often arise that require pinout verification—whether you are bench testing a used unit, repairing a damaged connector, or wiring in a replacement ECU. In this guide, we break down the critical details of the , focusing specifically on the "Top" connector and how to navigate its layout safely.