A faulty transmission control module (TCM) most often causes limp mode with the gearbox stuck in one gear, harsh jolts when you select D or R, erratic gear changes, flashing PRND letters and a gearbox or engine warning light. However, the same symptoms are often caused by a low gearbox oil level, a weak battery, a poor earth or a faulty sensor. To test a transmission control module, start by checking the battery and reading the fault codes with a diagnostic tool that can talk to the gearbox control unit, then check the power supply, the connector, the oil and the live data. Below we explain the symptoms, the diagnostic steps and what the most common fault codes mean.
Engine Control Unit Volkswagen Golf Bosch 038906012FB 0281010651
Vendors's code: 0281010651
Product code: 038906012FB
Barcode:
Code 39:
ISBN:
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Engine Control Unit Volkswagen Golf Bosch 038906012FB 0281010651
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How does the 038906012FB ECU differ from the FA version?
VW number 038906012FB has a different suffix from 038906012FA, and the Bosch numbers are 0281010651 and 0281010650 respectively – these are different versions of the module. This used, fully working unit comes from a diesel Volkswagen Golf.
Engine Control Unit Volkswagen Golf Bosch 038906012FB 0281010651
The Bosch 0281010651 module from a Volkswagen Golf is marked with VW number 038906012FB. It controls a diesel engine – regulating injection, starting and idling. As the data does not specify the engine size, base your choice solely on the numbers on the label. A working module with the identical FB version restores normal starting and running if the computer was the cause of the fault.
Numbers on the label
- 038906012FB – Volkswagen number, version FB
- 0281010651 – Bosch number; written on the label as 0 281 010 651
The letter after the VW number indicates the software or hardware version. Order this ECU if yours ends in FB – otherwise please contact us.
Typical signs of failure
- the engine will not start despite a working power supply,
- unexpected stalling when stationary,
- lack of power when accelerating,
- diagnostics cannot see the ECU or report an internal ECU fault.
Before replacing the module, it is worth checking the connector, earths and fuses – they are often the cause, and fixing them costs far less.
Purchase options
If you want the ECU ready to fit, choose the unlocked version – we prepare it before dispatch, usually within 1–2 working days. Whether PIN / CAR PASS, Virgin, IMMO OFF, auto programming or clone is possible depends on the part number, software and immobiliser; please ask us before you buy.
The locked version holds the data and immobiliser from the previous vehicle – it is bought by workshops that unlock, program and adapt ECUs themselves. Description: engine control unit options.
Questions and answers
| Are FB and FA interchangeable? |
|---|
| Do not assume so. They are different versions – compare the number with your label. |
| Where are the numbers? |
| On the label on the module casing. |
| Which engine is this ECU for? |
| For the Golf's diesel engine. Confirm the engine version by comparing the numbers. |
| What condition is the ECU in? |
| Used, fully working, in good condition. You will find the warranty period in the product features table. |
Email contact@auto24parts.com if you would like us to check the numbers.
