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.
Engine control unit Toyota 8966102D81 1758009581
Vendors's code: 1758009581
Product code: 8966102D81
Barcode:
Code 39:
ISBN:
€284.55
Price
€284.55
€350.00
Price
€350.00
Ask about the product
Engine control unit Toyota 8966102D81 1758009581
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€30.00
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Price 30 euros applies shipments to 5 kg on worldwide. Above this weight, please contact us by email to check price
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Where to find number 8966102D81 on Toyota engine control units?
Used Toyota engine control unit with number 8966102D81. Send us the numbers from the label on your control unit.
Engine control unit for Toyota: numbers 8966102D81 and 1758009581
Control unit 8966102D81 is a used original engine computer. It has been inspected before sale, and below you will find the complete list of numbers from the listing. The listing does not state the car model or year, so we do not give them in the description and match the part by its numbers.
Where to find the numbers on an engine control unit
The numbers from the listing, as written on the labels and as a single string:
- 8966102D81, car manufacturer's original number,
- 1758009581, control unit manufacturer's number.
Check the numbers on your control unit and compare them with those above. If any of them differs, contact us before ordering.
Control unit variant
This listing is for a control unit in the following variant(s): Locked / Unlocked. We describe the differences between the variants (locked, unlocked, Virgin, IMMO OFF, Plug and Play, clone, full set) on the ECU preparation options page. Before buying, send us the numbers from the label and we will confirm which variant is available for that number.
What engine starting problems can indicate
- the car loses power or goes into limp mode,
- the radiator fan or other electrical components do not work properly,
- faults appear and disappear, usually once the engine has warmed up,
- starting is blocked by the immobiliser after the electronics have been replaced or repaired.
Similar symptoms also occur with faulty sensors, bad fuel or worn spark or glow plugs, so start with diagnostics and only then replace the electronics.
Questions and answers
| Where do I find number 8966102D81 on my control unit? |
|---|
| The numbers are on a sticker or printed on the housing of the control unit. Take a close-up photo of the label in good light so that all the characters can be read. |
| Which car model does this control unit fit? |
| The listing does not state a model or year, so confirm compatibility with the number from the original control unit in your car, or send us a photo of its label. |
| Does a lit engine warning light always mean a faulty control unit? |
| No. Read the fault codes first, because the cause may be a sensor, the wiring or the power supply. |
| What is the condition of this control unit? |
| It is an original recycled part in good condition, checked by us. Warranty details are in the product features table. |
Want to check before you buy? Send a photo of the sticker on your control unit and we will check that the numbers match.
