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 Ford Bosch AB312C405AF 0265244147 0265956008
Vendors's code: AB312C405AF
Product code: 0265244147
Barcode:
Code 39:
ISBN:
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Where to find number AB312C405AF on Ford ABS pumps
Used ABS pump with control unit, number AB312C405AF, inspected before sale. Matched by the numbers on the block and sticker.
Ford ABS pump: numbers AB312C405AF and 0265244147
This is a used original ABS pump with a control unit for Ford cars: an aluminium hydraulic block with valves and a pump motor, with the electronics bolted to it. The main number is AB312C405AF, and the other numbers from the labels are listed below. The listing does not state the car model or year, so we do not give them here and match the part by its numbers.
Numbers and markings on the ABS pump
The numbers as written on the labels and as a single string, the way catalogues list them:
- AB312C405AF, original Ford number,
- 0 265 244 147 (catalogue format: 0265244147), hydraulic block manufacturer's number,
- 0 265 956 008 (catalogue format: 0265956008), control unit number.
Compare the numbers with the original pump in your car, and if any of them differs, write to us before buying.
Symptoms of a faulty ABS pump or control unit
- valve or pump motor faults are stored in the control unit memory,
- the ABS warning light comes on together with the stability control warning light,
- the ABS switches itself off shortly after the engine is started,
- on a slippery surface the wheels lock up noticeably sooner than they used to.
It is worth reading the fault codes and checking the sensor wiring before replacement. Fitting and bleeding the brake system are usually carried out by a garage with the right equipment.
Questions and answers
| Where do I find number AB312C405AF on my pump? |
|---|
| The numbers are stamped or printed on the aluminium hydraulic block, and the control unit has a separate sticker. Take a close-up photo of both places in good light. |
| Are the make and model of the car enough to choose the part? |
| No. A single model comes with different versions of the module, depending on the engine, year of manufacture and drivetrain. The most reliable reference is the number on the original pump. |
| Do the brakes need bleeding after replacing the module? |
| If the brake lines are disconnected during fitting, the system must be bled. The fault codes in the control unit usually need to be cleared as well. |
| What condition is this pump in? |
| It is a used original part, inspected before sale. You will find the warranty period in the product features table. |
Want to check before you buy? Send a photo of the block and sticker on your ABS pump and we will check that the numbers match.