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 Skoda Octavia Superb Volkswagen 1C0959799B 5DK00821400
Vendors's code: 1C0959799B
Product code: 5DK00821400
Barcode:
Code 39:
ISBN:
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Part number 1C0959799B - is it the right choice?
Used, working part: comfort control module for Skoda Octavia Superb Volkswagen Golf Bora Passat - numbers 1C0959799B; 5DK00821400. Before ordering, check the numbers on the label of the part removed from your car.
Comfort control module Skoda Octavia Superb Volkswagen Golf Bora Passat
This module (comfort control module) is intended for: Skoda Octavia Superb Volkswagen Golf Bora Passat. This is a used, working part in good technical condition.
Listing details
- Skoda Octavia Superb Volkswagen Golf Bora Passat - model
- 2001-2008 - year
- Hella - manufacturer
Symptoms of a fault
- locks and windows behave inconsistently,
- the module connector shows signs of corrosion,
- fault messages appear after starting,
- cabin illumination or signalling does not work.
Before buying a module, check fuses, earth points and connectors - corrosion and damaged wiring cause similar symptoms.
Numbers on the label
- 1C0959799B - VAG group number (OEM)
- 5DK00821400 - manufacturer number (Hella)
Compatibility with your car
Compare number 1C0959799B in full with the number on your part. Different versions were fitted to the same models, so the number decides, not the model and year alone.
How this part works
The module electronics are exposed to moisture and contact corrosion, especially when fitted in the scuttle, under the dashboard or near the doors. In VAG group cars the same model came with different module versions, so it is worth comparing the manufacturer number too.
Frequently asked questions
| Can a part with a different number fit as well? |
|---|
| Sometimes it can, but we do not assume that listings are interchangeable. Compare all numbers with the label on your part or ask us. |
| Is coding needed after replacement? |
| It depends on the make, model and version. Before buying, check whether your car needs adaptation or coding after the replacement. |
| What should I check on delivery? |
| Check that the numbers match the description and that the connectors and housing show no cracks or corrosion. |
Any doubts? Send a photo of your part to contact@auto24parts.com - we will check it for you.