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 Toyota Aygo Bosch 0265251415 445400H020 0265951530
Vendors's code: 445400H020
Product code: 0265251415
Barcode:
Code 39:
ISBN:
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Do the numbers 0265251415 and 44540-0H020 match your part?
Used, working, genuine ABS unit from a Toyota Aygo: numbers 0265251415, 44540-0H020 and 0265951530. The best way to choose the right part is to start by comparing these numbers.
Toyota Aygo - ABS unit with numbers 0265251415, 44540-0H020 and 0265951530
We are offering an ABS unit from a Toyota Aygo: a hydraulic block with pump and a separate control unit. The hydraulic block is stamped with 0 265 251 415 (a Bosch number) and 44540-0H020. The control unit label shows 0 265 951 530. The part is used, working and genuine.
What is marked on the unit
- 0265251415 - Bosch number stamped on the hydraulic block: 0 265 251 415
- 445400H020 - part number (OEM) stamped on the hydraulic block: 44540-0H020
- 0265951530 - number shown on the control unit label: 0 265 951 530
Numbers 0265251415 and 0265951530 begin with 0265, which is the Bosch prefix. The hyphenated form, 44540-0H020, is the same number as 445400H020 in the listing title. All three should match your unit.
When it is worth checking the ABS system
Signs that usually call for diagnostics:
- the ABS warning light comes on and stays on after the engine is started,
- an ABS module fault is stored in the fault memory,
- the diagnostic tester cannot communicate with the control unit,
- the ABS stops working under hard braking.
First read the fault codes and rule out the cheaper causes: wheel speed sensors, connectors and wiring, fuses and battery voltage. After fitting, the brake system needs bleeding and, on some cars, the module also needs to be configured - this is a job for a workshop.
Frequently asked questions
| Which car model is it? |
|---|
| The unit comes from a Toyota Aygo. Even so, base your choice on the numbers in the list, not only on the model name. |
| Which numbers should I compare first? |
| Start with 44540-0H020 and 0265251415, as both are stamped on the hydraulic block. Then check 0265951530 from the control unit label. |
| Can I send a photo of my part for comparison? |
| Yes. Send a photo of the hydraulic block and the control unit label, and we will check that the numbers match before you order. |
| What condition is the part in, and what about the warranty? |
| The unit is used, working and genuine. You will find the warranty period in the product features table. |
Not sure about the numbers? Write to us and send your VIN or a photo of your unit - we will check together whether the listing is the right one.