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 Fiat TRW 51935306
Vendors's code: 51935306
Product code: 51935306 TRW
Barcode:
Code 39:
ISBN:
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ABS light on, and your old part shows 51935306?
This is a used, working, genuine TRW ABS pump and control module unit. The listing title names Jeep and Fiat. We do not state the model - selection is by part number.
Jeep / Fiat - TRW ABS unit, number 51935306
Is the ABS light on from start-up, with the diagnostic tool pointing to the brake module? Then it is time to check the number on the housing of your old part. There is one number in this listing. According to the title, the unit was made by TRW. Two makes appear in the title: Jeep and Fiat. We do not claim that this number covers every car of these makes. The unit is used, working and genuine.
The number from the label
- 51935306 - part number (OEM): 51935306
A single number means a quick check, but it requires care. Look for it on the label or the print on the housing. It is often dirty, so clean the label gently first. Then compare it character by character, including the last digits. We do not assign the pump or control module role to this number.
Symptoms that start the search
Customers usually find this listing when they notice symptoms such as:
- the ABS warning light comes on as soon as the key is turned,
- the diagnostic tool cannot see the brake module,
- the stability control light is on next to the ABS light,
- the pump does not start during a diagnostic test.
Always diagnose before you buy. Note down the fault codes and check the wheel speed sensors. Inspect the module earth and power supply. If everything points to the unit, compare the number. After fitting, the system must be bled. Ask the workshop about coding.
Questions about the TRW unit
| Is TRW the manufacturer of this part? |
|---|
| The listing title gives TRW as the manufacturer. |
| Does the unit cover both Jeep and Fiat? |
| Both makes are in the title. However, selection depends on the number 51935306, not on the make alone. |
| Where should I look for the number on my old part? |
| Usually on a label or print on the housing. If it is illegible, take a photo and get in touch. |
| Can I read the number without removing the part? |
| Sometimes you can; it depends on the car. If the label is hidden, ask a workshop for help. |
Read the number from your unit and get in touch. We will compare it with the listing before processing your order.