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 Nissan Almera 1.8 MEC20705
Vendors's code: MEC20705
Product code: MEC20705
Barcode:
Code 39:
ISBN:
€81.30
Price
€81.30
€100.00
Price
€100.00
Ask about the product
Engine control unit Nissan Almera 1.8 MEC20705
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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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Will engine control unit MEC20705 fit your Nissan?
Used original engine control unit, number MEC20705, inspected before sale. Matched by the numbers in the listing.
What does number MEC20705 mean on Nissan engine control units?
According to the listing, this is a control unit for Nissan Almera with a 1.8 engine. Control unit MEC20705 is a used original module, and its numbers help tell it apart from similar versions. The listing states that this control unit is for: Nissan Almera. Engine given in the listing: 1.8. The listing also gives the markings Y9. They help tell the control unit versions apart, but the full part number is what decides compatibility.
Where to find the numbers on an engine control unit
Below are the numbers as they appear in the listing, together with the single-string form used in catalogues:
- MEC20705, control unit manufacturer's number.
The full numbers matter, including their endings. If in doubt, send us a photo of your control unit.
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 engine idles unevenly or stalls for no obvious reason,
- the engine starts and immediately stalls,
- the radiator fan or other electrical components do not work properly,
- the engine no longer runs properly after the battery has gone flat.
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 MEC20705 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. |
| Will the control unit work after fitting without programming? |
| That depends on the variant of the control unit and on the car. Before buying, send us the numbers from the label and we will confirm what is needed. |
| 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. |
| Is this a new part? |
| No. We sell used original control units, each one inspected before sale. You will find the warranty period in the product features table. |
Not certain this is the right control unit? Send us the numbers from the label on your control unit and we will help you compare them.
