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 MEC20500
Vendors's code: A1
Product code: MEC20500
Barcode:
Code 39:
ISBN:
€203.25
Price
€203.25
€250.00
Price
€250.00
Ask about the product
Engine control unit Nissan Almera MEC20500
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€30.00
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(Poland)
from
€30.00
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shipping
(Poland)
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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The shipping cost applies to this product (in the selected variant - if applicable). It may change after adding other products to the cart.
When is engine control unit MEC20500 the right choice for Nissan Almera?
Used original engine control unit, number MEC20500, inspected before sale. Matched by the numbers in the listing.
Engine control unit MEC20500 for Nissan Almera: how to match it by part numbers?
If the engine will not start or the engine warning light is on, one possible cause is the control unit. Control unit MEC20500 for Nissan Almera is a used original part, inspected before sale. The listing states that this control unit is for: Nissan Almera. The listing also gives the markings A1, 0Z12, 2T. They help tell the control unit versions apart, but the full part number is what decides compatibility.
Control unit numbers and markings
You will find the numbers on the label of the control unit, while catalogues list them as a single string:
- MEC20500, 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.
Faults that call for checking the control unit
- the engine warning light comes on and does not go out,
- the car loses power or goes into limp mode,
- fuel consumption rises for no obvious reason,
- the housing or connector of the control unit shows signs of water ingress or corrosion.
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. |
| Can I send a photo for a compatibility check? |
| Yes. Contact us and send a photo of the label on the original control unit, and we will help you check whether this part will fit. |
| How should I prepare for fitting the control unit? |
| Disconnect the battery, check the connector and the wiring, and after fitting read and clear the fault codes with a tester. Configuration is best carried out in a garage with suitable equipment. |
| 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 sure about the match? Send us a photo of the label on your control unit and we will check whether this part will fit.
