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 Jeep ATE P52124456AA 25020612684 00404087C100 25092643893
Vendors's code: P52124456AA
Product code: 25092643893
Barcode:
Code 39:
ISBN:
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Two OEM and two ATE numbers - what does your part show?
Used, working, genuine ABS unit for Jeep. The main number is P52124456AA. You will find the other three numbers in the description. We do not state the model.
Jeep - ABS unit P52124456AA, 00404087C100
This unit has four numbers. Two are part numbers (OEM): P52124456AA and 00404087C100. The other two are ATE numbers. The second OEM number has a different format from the first, so it is easy to overlook. The unit is used, working and genuine. It is intended for Jeep.
The four numbers on this unit
- P52124456AA - part number (OEM): P52124456AA
- 25020612684 - ATE number: 25.0206-1268.4
- 00404087C100 - part number (OEM): 00404087C100
- 25092643893 - ATE number: 25.0926-4389.3
The number 00404087C100 begins with zeros. Do not leave them out when comparing. ATE numbers are written either with a full stop and a hyphen or as a continuous string. We do not specify which number belongs to the pump and which to the control module.
Typical symptoms
Enquiries about this unit most often concern faults such as:
- the ABS light is on and a brake warning appears on the display,
- traction control cannot be switched on,
- the diagnostic tool reports a control module checksum error,
- the ABS pump makes a loud noise during the self-test.
First connect a diagnostic tool and note down the codes. Check the wheel sensors and their connectors. Check the brake fluid level. If the codes point to the unit, compare the four numbers. After replacement, bleed the brakes and ask about configuration.
Frequently asked questions
| Where is the number 00404087C100? |
|---|
| On your old part, look for it on the labels on the housing. It may be in a different place from the number P52124456AA. |
| Do the leading zeros matter? |
| Yes. They are part of the number and should be compared along with the rest. |
| Which Jeep model? |
| We do not state the model. Selection is by part numbers. |
| Can I ask before ordering? |
| Of course. Send us the numbers and we will reply with the result of the comparison. |
Check both labels on your part and send us the four numbers. We will compare them with this listing.