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.
Comfort control module Alfa Romeo Romeo Lancia 51786801 503440110105
Vendors's code: 51786801
Product code: 51786801
Barcode:
Code 39:
ISBN:
Ask about the product
Administratorem danych osobowych jest Auto24parts. Przetwarzamy je w celu przesłania odpowiedzi na zapytanie. Więcej informacji dotyczących przetwarzania danych osobowych znajduje się w polityce prywatności.
Price 30 euros applies shipments to 5 kg on worldwide. Above this weight, please contact us by email to check price
Shipping cost for the selected product
The shipping cost applies to this product (in the selected variant - if applicable). It may change after adding other products to the cart.
Does this comfort control module fit Alfa Romeo Romeo Lancia?
Used, working part: comfort control module for Alfa Romeo Romeo Lancia - numbers 51786801; 503440110105. Before ordering, make sure the numbers match the label of your part.
Comfort control module Alfa Romeo Romeo Lancia
For Alfa Romeo Romeo Lancia we offer a used comfort control module that you can match by the numbers on the list. It is working and in good condition.
Matching by numbers
For this model we offer several parts that differ in their numbers. The number on the label decides, not the model name alone.
When to replace the part
- cabin illumination or signalling does not work,
- fault messages appear after starting,
- the module connector shows signs of corrosion,
- locks and windows behave inconsistently.
Inspect the module connectors: green or burnt pins cause symptoms similar to faulty electronics.
Part markings
- 51786801 - part number
- 503440110105 - additional part number
Vehicle and manufacturer
- Alfa Romeo Romeo Lancia - model
Role of the part in the car
The module collects the driver's commands and distributes power to individual body circuits, so many small functions in the car depend on it.
Frequently asked questions
| Which number matters most when matching? |
|---|
| It is best to compare all numbers on the label, above all the one marked as the manufacturer or OEM number. |
| Is the part new? |
| The part is used but working. The warranty is stated in the product features. |
| Do you also sell connectors or wiring? |
| This listing covers only the part described in the title. You will find other items in the remaining shop categories, or ask us about availability. |
Any doubts? Send a photo of your part to contact@auto24parts.com - we will check it for you.