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 Volvo XC90 30656248 30656246
Vendors's code: 30656248
Product code: 30656248
Barcode:
Code 39:
ISBN:
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Part number 30656248 - is it the right choice?
Used, working part: comfort control module for Volvo XC90 - numbers 30656248; 30656246. Compare the numbers with the label of the part currently in your car.
Comfort control module Volvo XC90
In Volvo XC90 (2003) the comfort control module collects signals from switches and distributes them to consumers. We sell a used, working unit in good condition.
Part numbers to check
- 30656248 - part number
- 30656246 - additional part number
- 601.820 / 601820 - additional part number
- 601.828 / 601828 - additional part number
When to replace the part
- nothing happens when settings are changed,
- the battery drains overnight for no obvious reason,
- the interior lighting does not switch off,
- door signalling works incorrectly.
It is worth reading the fault codes first, because many body faults come from switches or wiring rather than the module itself.
Fitment
Compare number 30656248 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.
Function in the car
Which functions the module handles depends on the software and equipment of the car; the same physical module may work differently in another car.
Vehicle and manufacturer
- Volvo XC90 - model
- 2003 - year
Buyers' questions
| Why does the number have several spellings? |
|---|
| The same label number is written with spaces, dashes or as one string. We give both forms so that it is easier to find. |
| What should I check on delivery? |
| Check that the numbers match the description and that the connectors and housing show no cracks or corrosion. |
| What condition is this part in? |
| This is a used, working part in good condition. You will find the warranty period in the product features table. |
Not sure? Write to contact@auto24parts.com and we will help you choose the right part for your car.