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 Audi TRW 5N0614109AJ 54085772J 17618854 17618954A
Vendors's code: 5N0614109AJ
Product code: 1E91-5216D
Barcode:
Code 39:
ISBN:
€325.20
Price
€325.20
€400.00
Price
€400.00
Ask about the product
ABS pump and control module Audi TRW 5N0614109AJ 54085772J 17618854 17618954A
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Need ABS unit 5N0614109AJ with control module?
We are offering a complete, used and working TRW unit from an Audi, marked with number 5N0 614 109 AJ. Before buying, compare this number and the TRW numbers on the label with the markings on your own part.
ABS pump 5N0614109AJ (TRW 54085772J) - block with module
This item comprises the aluminium hydraulic block with valves, the pump motor and the bolted-on control module. The block shows dot-punched characters, illegible in the photos, and the motor a small barcode sticker. You can read the numbers needed for matching, including 5N0614109AJ and three TRW numbers, from the unit label.
What the label says
- 5N0614109AJ - VAG number of the ABS pump (hydraulic unit): 5N0 614 109 AJ
- 54085772J - TRW number from the unit label, written 54085772J
- 17618854 - TRW number from the unit label, written 17618854
- 17618954A - TRW number from the unit label, marked as 17618954-A
The TRW label does not state what the individual numbers refer to, so compare them as a set, without assigning them to the pump or the control module. Our shop also lists 10 more variants with a different ending - the letters AJ should be the same as on your part.
When the ABS unit starts misbehaving
Typical symptoms include:
- an ABS lamp that is permanently on,
- an entry for an internal control module fault,
- a module invisible to the diagnostic tool,
- an additional brake lamp on the instrument cluster.
Before removing the old part, use a diagnostic tool to find out which faults are stored, then check the sensors at the wheels, the fuse supply, the connector and the battery. Once the unit is fitted, plan for bleeding, module coding - often needed on VAG cars - and, with ESP, a basic setting of the steering angle sensor.
Questions about unit 5N0614109AJ
| Will this pump suit my Audi? |
|---|
| Yes, provided your car was fitted with a unit bearing the same numbers. We do not list the model - the markings are what count. |
| What about the warranty and condition? |
| The TRW unit is used and working. The warranty period is given in the product features table. |
| Can I fit a version with a different final letter? |
| We advise against it without checking. A suffix other than AJ may mean a different version of the system. |
| What needs doing to the brakes after fitting? |
| The whole system must be bled - after installing this hydraulic block it is essential. |
Send a shot of the label on your unit or your VIN - we will compare the markings and get back to you.
