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 P052128138AD 25020404094 56027931AC
Vendors's code: 25020404094
Product code: P052128138AD
Barcode:
Code 39:
ISBN:
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ABS and brake lights on at the same time? Unit P052128138AD for Jeep
Used, working, genuine ABS pump with control module. Three numbers: two part numbers (OEM) and one ATE number. We do not state the model.
ABS pump with control module for Jeep - P052128138AD and ATE 25.0204-0409.4
When the ABS warning light is lit on the dashboard with the braking system light beside it, a driver is right to be concerned. First check the fluid level and the condition of the pads. Then read the fault codes. If they point to the ABS unit, turn to the numbers. This listing is for a used, working and genuine unit for Jeep. Selection is by part numbers.
List of numbers
- P052128138AD - part number (OEM): P052128138AD
- 25020404094 - ATE number: 25.0204-0409.4
- 56027931AC - part number (OEM): 56027931AC
The first number has twelve characters and begins with P0. The second part number (OEM), 56027931AC, ends in letters. You may also come across the ATE number as 25020404094. We do not separate the pump and control module roles - compare the full set.
Two warning lights at once
For this listing, customers most often describe:
- the ABS light together with the brake warning light,
- a brake force distribution fault on the diagnostic tool,
- a longer stopping distance on slippery surfaces,
- a wheel sensor entry that keeps coming back even after the sensor has been replaced.
Two warning lights do not necessarily mean the unit is damaged. A common cause is a low fluid level or a wheel sensor. If replacing the sensor does not help and the fault comes back, suspicion falls on the module. Then compare the numbers. After fitting, bleeding is essential.
Worth knowing
| Can I drive with both warning lights on? |
|---|
| Don't take the risk. Have the brakes checked at a workshop as soon as possible. |
| Is 56027931AC the control module number? |
| We do not assign roles. It is a part number (OEM) given in the listing. |
| How should I write the ATE number? |
| With full stops, 25.0204-0409.4, or as the string 25020404094. |
| Which Jeep model is this unit for? |
| We do not state the model. What counts is whether the three numbers match. |
Get in touch with the three numbers from your part. We will compare them with the list.