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 Fiat 9667399580 V34.2
Vendors's code: 9667399580
Product code: V342
Barcode:
Code 39:
ISBN:
£276.80
Price
£276.80
£340.46
Price
£340.46
Select a product option:
Individual variants may differ in price
product option
Important: Depending on the ECU type and vehicle model, not all of the options listed below may be available.
To select the correct option for your vehicle and ECU, please contact us before purchasing:
contact@auto24parts.com
1. Locked
This option is intended for professional workshops with the required specialist equipment and technical knowledge.
The ECU has been removed from a vehicle intended for recycling and still contains the immobilizer data and other information from the previous vehicle. Before it can be used in another car, it must be unlocked and then programmed using specialist automotive diagnostic equipment.
2. Unlocked
Several preparation methods may be available. The possible options depend on the ECU type, vehicle model and immobilizer system. Please contact us before purchasing, as some preparation methods are not available for every ECU.
Our electronics specialists can prepare the ECU in one of the following ways:
a) ECU with PIN code (Car Pass)
The PIN code is supplied, but programming with a suitable diagnostic tool is still required. After installing the ECU, it must be reset using the supplied PIN code and then programmed to the vehicle’s immobilizer system.
b) VIRGIN ECU
The data from the previous vehicle is removed and the ECU is restored to a clean, factory-like state. After installation, it must be programmed to the vehicle using a compatible specialist diagnostic tool. Unless another preparation method is specified in the product description, this is the standard unlocking option for most of our ECUs.
c) Plug & Play – IMMO OFF
The immobilizer function is disabled in the ECU. After installation, the engine can start without additional immobilizer programming. Please note that the vehicle will no longer have an active immobilizer function, and an immobilizer warning light or fault code may remain, depending on the vehicle model.
d) Plug & Play – Automatic Programming
After installation, the ECU automatically learns and saves the required vehicle data. No additional programming is normally required.
e) Plug & Play – 1:1 Clone
The data from your original ECU is copied to another fully functional ECU. The cloned unit is then ready for installation without additional programming.
You must send us your original ECU so that we can transfer its data to the replacement unit.
The original ECU must have working communication with the vehicle, a diagnostic tool or our programming equipment. If the required data cannot be read, a complete 1:1 clone may not be possible.
3. Complete Plug & Play Set
A complete matched set containing the ECU, immobilizer components and all other parts required to start the vehicle without additional programming. All components supplied in the set must be installed in the vehicle.
Important:
Dispatch time depends on the selected option. If an unlocked or specially prepared version is ordered, the preparation service usually requires an additional 1–2 business days.
Ask about the product
Engine Control Unit Fiat 9667399580 V34.2
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Shipping
from
£22.70
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shipping
(Poland)
from
£22.70
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shipping
(Poland)
Price 30 euros applies shipments to 5 kg on worldwide. Above this weight, please contact us by email to check price
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Where can you find number 9667399580 on an engine control unit?
You can check number 9667399580 and the V34.2 designation on the label on your current ECU's casing. We sell this used, fully working module locked only – for programming at a garage.
Engine Control Unit Fiat 9667399580 V34.2
Number 9667399580 follows the PSA (Peugeot/Citroen) numbering format, and this engine control unit comes from a Fiat. The module manages engine operation based on signals from the sensors. We offer it used, fully working and in good condition, in the locked version only.
Numbers on the label
- 9667399580 – part number in PSA numbering
- V34.2 – additional designation on the label
No vehicle model is given here, because compatibility is determined by the numbers. Compare number 9667399580 and the V34.2 designation with the sticker on your ECU.
Symptoms of a faulty engine ECU
- the engine won't start despite a working power supply,
- no communication with the ECU during diagnostics,
- engine warning light and limp mode with no other cause,
- damage after water ingress or a voltage surge.
Start by checking the fuses, earths and loom connectors. Reading the fault codes will help establish whether the fault lies in the module itself or in its power supply and connections.
Locked version only
We sell this module only locked – with the data and immobiliser of the previous vehicle. It's intended for garages that will program and match it to the vehicle themselves. We don't offer a version prepared before dispatch for it. If you're not sure whether your garage can handle the programming, ask us before you buy – we'll let you know what information will be needed.
You can read about the types of ECU versions on the Engine control unit (ECU) variants page.
Questions and answers
| Why does a Fiat have an ECU with a PSA number? |
|---|
| Number 9667399580 follows the PSA (Peugeot/Citroen) numbering format. What decides compatibility is whether the same number is on your ECU. |
| Will the ECU start the vehicle straight after fitting? |
| No. The locked version needs to be programmed and matched to the immobiliser. |
| What does V34.2 mean? |
| It's an additional designation on the label – compare it together with the main number. |
| What condition is the module in? |
| Used, fully working. You'll find the warranty period in the product features table. |
Before you buy, you can email contact@auto24parts.com and send a photo of the label.
