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 MEC20635
Vendors's code: B1
Product code: MEC20635
Barcode:
Code 39:
ISBN:
$329.10
Price
$329.10
$404.80
Price
$404.80
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Engine control unit Nissan Almera 1.8 MEC20635
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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 MEC20635 on Nissan engine control units?
Used original engine control unit, number MEC20635, inspected before sale. Matched by the numbers in the listing.
Used engine control unit for Nissan Almera with number MEC20635
This is a used original engine control unit for Nissan Almera. It manages engine operation based on signals from sensors. The main number is MEC20635, and the other numbers from the listing are given below. The listing states that this control unit is for: Nissan Almera. Engine given in the listing: 1.8. The listing also gives the markings B1, 2402, YM. They help tell the control unit versions apart, but the full part number is what decides compatibility.
Control unit numbers and markings
The numbers from the listing, as written on the labels and as a single string:
- MEC20635, 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 starts and immediately stalls,
- the radiator fan or other electrical components do not work properly,
- the engine jerks when accelerating,
- the engine no longer runs properly after the battery has gone flat.
First check the battery, fuses and wiring, because a faulty control unit has to be distinguished from an ordinary fault in the electrical system. Fitting and configuration are best left to a garage with suitable equipment.
Questions and answers
| 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. |
| Does this control unit fit the 1.8 engine? |
| According to the listing it does, but confirm this with the numbers from the original control unit, because a single model comes with different versions. |
| What should I do if the ending of my number is different? |
| The ending of a number often indicates a different version of the control unit, so do not order the part without confirmation. Send us the number from the label on your control unit. |
| What condition is this control unit in? |
| It is a used original part, inspected before sale. You will find the warranty period in the product features table. |
Want to be certain? Send us the numbers from the housing of your control unit, and together we will check whether this part will fit.
