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 Iveco Bosch 504346590 0265233377 0265900371
Vendors's code: 0265900371
Product code: F7F4-9001F
Barcode:
Code 39:
ISBN:
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Does ABS pump 504346590 come complete with the control unit?
Used ABS pump with control unit, number 504346590, inspected before sale. Matched by the numbers on the block and sticker.
Iveco ABS pump: numbers 504346590 and 0265233377
The hydraulic block and control unit of this ABS pump form a single module that works with the wheel speed sensors in Iveco cars. You will find number 504346590 on the label, and the full set of numbers is given in the description 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 from the listing, as written on the labels and as a single string:
- 504346590, original Iveco number,
- 0 265 233 377 (catalogue format: 0265233377), hydraulic block manufacturer's number,
- 0 265 900 371 (catalogue format: 0265900371), control unit number.
Matching by number is more reliable than matching by car model. Compare all the numbers and ask us if any of them does not match.
When an ABS module needs replacing
- the ABS warning light comes on after the engine is started and stays on,
- the brake pedal pulses or feels uneven for no obvious reason,
- 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
| Which car model does this pump fit? |
|---|
| The listing does not state a model or year, so confirm compatibility with the number from the original pump in your car, or send us a photo of it. |
| 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. |
| Can I send a photo for a compatibility check? |
| Yes. Contact us and send a photo of the numbers on your original pump, and we will help you check whether this module will fit. |
| What condition is this ABS module in? |
| It is an original recycled part in good condition, checked by us. Warranty details are in the product features table. |
Want to be certain? Send us the numbers from the block and sticker on your ABS pump, and together we will check whether this part will fit.