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.
ABS pump and control module Renault Bosch 476604794R A4539005902 0265255386 0265956403 2265106516
Vendors's code: A4539005902
Product code: 476604794R
Barcode:
Code 39:
ISBN:
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Diagnostics will not connect to the ABS module? Check five numbers
Used, working, original ABS pump with control module for Renault. Five numbers, including 476604794R. We do not state the model.
Renault - ABS unit with five numbers, starting with 476604794R
The diagnostic interface stays silent or displays an ABS module error. That is when the search for a unit by numbers begins. This listing has as many as five: 476604794R, A4539005902, 0 265 255 386, 0 265 956 403 and 2265106516. The part is used, working and original, intended for Renault. With so many items it is easy to make a mistake, so go through them in order.
Five numbers in the listing
- 476604794R - part number (OEM): 476604794R
- A4539005902 - part number (OEM): A4539005902
- 0265255386 - Bosch number: 0 265 255 386
- 0265956403 - Bosch number: 0 265 956 403
- 2265106516 - part number (OEM): 2265106516
Two Bosch numbers are written with spaces, but they are ordinary ten-digit strings. Copy the three part numbers (OEM) exactly as they are. We do not indicate which relates to what.
When the module stops responding
In practice it looks like this:
- the tester cannot see the brake control module,
- the ABS and ESP lights come on at the same time,
- the ABS system switched off while driving,
- when the brake is pressed, only a quiet knock can be heard.
Rule out the simplest causes first: the fuse, the power supply, the earth, the module connector. If it is none of these, take the label off the part and compare it with the list. The system must be bled after replacement.
Questions about the list of numbers
| Do I need to know all five numbers? |
|---|
| The more items that match, the more certain the choice. It is enough, though, to copy down all those you can see. |
| Why so many numbers in one listing? |
| These markings are on this unit. We give them unchanged. |
| Which number should I start with? |
| You can start with 476604794R, but check the others too. |
| Is this a listing for the pump alone? |
| It is an ABS pump with control module unit, described by its numbers. |
Have your own part to hand? Note down the numbers and send them to us before ordering.