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 Alfa Romeo 156 Bosch 0265216401 46513088 0273004261
Vendors's code: 46513088
Product code: 0273004261
Barcode:
Code 39:
ISBN:
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Does your ABS unit for the Alfa 156 end with number 0273004261?
A used, working, original ABS pump and control module unit, model confirmed: Alfa Romeo 156. It is distinguished by the third Bosch number, 0273004261, alongside the shared pair 0265216401 and 46513088.
Variant 0273004261: ABS Alfa Romeo 156 (Bosch 0265216401, OEM 46513088)
This listing concerns the Alfa Romeo 156 model. The ABS unit is used, in working order and original. The numbers 0265216401 and 46513088 are shared by several variants; here they are completed by a third Bosch number, 0273004261, and it is this that indicates the correct variant. Selection is by part numbers, so before you compare the rest, start with the ending 0273004261.
Numbers in order of matching
- 0265216401 - Bosch, prefix 0265: 0 265 216 401
- 46513088 - part number (OEM): 46513088
- 0273004261 - Bosch, prefix 0273 - distinguishes this variant: 0 273 004 261
The prefix 0273, like 0265, denotes the Bosch family. We do not specify which number refers to the pump and which to the control module. Compare them as a set.
Symptoms that point to the ABS unit
The most commonly reported are:
- the ABS warning light permanently on,
- ABS hydraulics errors in the tester,
- no communication with the module when reading,
- the ABS switching itself off while driving.
Before you buy the unit, read the fault codes and check the wheel sensors and wiring. After replacement the brake system must be bled. Put any questions about coding the control module to the workshop.
Questions about the variant
| What distinguishes this listing from another with number 46513088? |
|---|
| The third Bosch number. Here it is 0273004261; in another listing it may be different. |
| Is 156 a confirmed model? |
| Yes, it is the Alfa Romeo 156. Even so, the numbers have the final say. |
| Is the part original? |
| Yes, it is used, in working order and original. The warranty period is given in the product features table. |
| How do I check compatibility before buying? |
| Copy the three numbers from your part and compare them with the list above. |
Not sure whether your variant is 0273004261? Send us the numbers and we will help you compare them.