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.
Automated Manual Transmission Control Unit Suzuki Aisin 32481110741 3888063JB1 63JA
Vendors's code: 32481110741
Product code: C9A1-33692
Barcode:
Code 39:
ISBN:
€813.01
Price
€813.01
€1,000.00
Price
€1,000.00
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Automated Manual Transmission Control Unit Suzuki Aisin 32481110741 3888063JB1 63JA
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Transmission Control Unit 32481110741 – does it fit your Suzuki?
This is a used, working Aisin automated manual transmission control unit with part numbers 32481110741, 3888063JB1 and 63JA. The car model is not specified – the unit is matched by its numbers. Before buying, compare the numbers with the label on the control unit in your car.
Automated Manual Transmission Control Unit Aisin 32481110741 – Suzuki
An automated manual gearbox is a manual gearbox in which the clutch and gear changes are operated by actuators. The control unit (TCU) decides when to disengage the clutch and change gear and controls the actuators – the driver has no clutch pedal. This unit comes from a Suzuki; the car model is not specified, so it is matched by its numbers.
Part numbers to compare
- 32481110741 – control unit manufacturer number (Aisin), on the label: 324811-10741
- 3888063JB1 – Suzuki part number, on the label: 38880-63JB1
- 63JA – additional marking
The same numbers should appear on the control unit in your car. The car model alone is not enough – control units differ in software version and configuration.
Signs of a faulty transmission control unit
When the transmission control unit starts to fail, the most common signs are:
- inability to engage a gear or pull away,
- a gearbox or clutch fault message,
- jerky gear changes,
- no communication with the control unit in the diagnostic tool.
Before replacing it, check the battery and power supply – automated manual gearboxes are sensitive to low voltage – as well as the earth connections and connectors, and read the fault codes. After replacement, the gearbox usually needs an adaptation (including clutch bite point learning) with a diagnostic tool.
Frequently asked questions
| Which car does the 32481110741 control unit fit? |
|---|
| The control unit comes from a Suzuki; the car model is not specified. It is matched by its numbers – compare them with the label on the control unit in your car. |
| Which number should I compare? |
| Ideally all of them: 32481110741 is the control unit manufacturer number, 3888063JB1 is the Suzuki part number and 63JA is an additional marking. You will find them all on the control unit label. |
| Does the control unit need programming after replacement? |
| Usually yes – after fitting, the gearbox is adapted (including clutch bite point learning) with a diagnostic tool. |
| What condition is this control unit in? |
| It is a used part in good working condition. The warranty period is shown in the product specification table. |
Not sure whether this control unit fits your car? Send us a photo of your control unit label and we will confirm compatibility.
