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 Mazda 323 Denso ZL1318881A 279700-0422 2797000422
Vendors's code: 2797000422
Product code: 6490-738A1
Barcode:
Code 39:
ISBN:
€121.95
Price
€121.95
€150.00
Price
€150.00
Select a product option:
Individual variants may differ in price
product option
Important: Depending on the ECU type and vehicle model, not all of the options listed below may be available.
To select the correct option for your vehicle and ECU, please contact us before purchasing:
contact@auto24parts.com
1. Locked
This option is intended for professional workshops with the required specialist equipment and technical knowledge.
The ECU has been removed from a vehicle intended for recycling and still contains the immobilizer data and other information from the previous vehicle. Before it can be used in another car, it must be unlocked and then programmed using specialist automotive diagnostic equipment.
2. Unlocked
Several preparation methods may be available. The possible options depend on the ECU type, vehicle model and immobilizer system. Please contact us before purchasing, as some preparation methods are not available for every ECU.
Our electronics specialists can prepare the ECU in one of the following ways:
a) ECU with PIN code (Car Pass)
The PIN code is supplied, but programming with a suitable diagnostic tool is still required. After installing the ECU, it must be reset using the supplied PIN code and then programmed to the vehicle’s immobilizer system.
b) VIRGIN ECU
The data from the previous vehicle is removed and the ECU is restored to a clean, factory-like state. After installation, it must be programmed to the vehicle using a compatible specialist diagnostic tool. Unless another preparation method is specified in the product description, this is the standard unlocking option for most of our ECUs.
c) Plug & Play – IMMO OFF
The immobilizer function is disabled in the ECU. After installation, the engine can start without additional immobilizer programming. Please note that the vehicle will no longer have an active immobilizer function, and an immobilizer warning light or fault code may remain, depending on the vehicle model.
d) Plug & Play – Automatic Programming
After installation, the ECU automatically learns and saves the required vehicle data. No additional programming is normally required.
e) Plug & Play – 1:1 Clone
The data from your original ECU is copied to another fully functional ECU. The cloned unit is then ready for installation without additional programming.
You must send us your original ECU so that we can transfer its data to the replacement unit.
The original ECU must have working communication with the vehicle, a diagnostic tool or our programming equipment. If the required data cannot be read, a complete 1:1 clone may not be possible.
3. Complete Plug & Play Set
A complete matched set containing the ECU, immobilizer components and all other parts required to start the vehicle without additional programming. All components supplied in the set must be installed in the vehicle.
Important:
Dispatch time depends on the selected option. If an unlocked or specially prepared version is ordered, the preparation service usually requires an additional 1–2 business days.
Ask about the product
Engine control unit Mazda 323 Denso ZL1318881A 279700-0422 2797000422
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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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What does the number ZL1318881A on a Mazda 323 control unit mean?
Used Denso engine control unit, numbers ZL1318881A and 279700-0422, inspected before sale. Compare the numbers from the label with the original in your car.
What does the number ZL1318881A on a Mazda 323 engine control unit mean?
This is a used Denso engine control unit which, according to the listing data, is for the Mazda 323. The label shows the Denso name, the words Made in Japan, the marking ZL13 with the note EGI, the number ZL13 18 881A and the Denso number 279700-0422 with a voltage of 12V. The housing is flat, with metal brackets at the top and bottom.
How to read the numbers on the label
- ZL1318881A is the Mazda part number, written on the label with spaces (ZL13 18 881A),
- 279700-0422 is the Denso number, which we also give in the listing without the hyphen, as 2797000422,
- ZL13 is the short control unit designation printed in large type above the numbers.
Before buying, compare both numbers with the original control unit. If either of them differs, write to us before you place your order.
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 point to the control unit
- the engine does not start, or starts and stalls immediately,
- the engine warning light comes on for no obvious reason,
- the tester cannot connect to the control unit.
Before replacing the control unit, check the power supply to the control unit, the earth connections and the condition of the connector. Older cars often have oxidised contacts, which cause similar symptoms.
Questions and answers
| Which numbers should I compare before buying? |
|---|
| The Mazda part number ZL13 18 881A and the Denso number 279700-0422, that is, the same markings that we give in the listing. |
| Is this an original Denso control unit? |
| Yes, it is a used original control unit. The Denso name and the words Made in Japan are visible on the label in the photo. |
| Does the control unit fit every Mazda 323? |
| Not always. The listing does not state the year or the engine, so compatibility is determined by the numbers, not by the model name alone. |
| What condition is this control unit in? |
| It is a used original part that has been inspected before sale. You can find the warranty period in the product features table. |
If you are not sure about compatibility, send us a photo of the label on your control unit and we will check the numbers.
