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 Suzuki Denso 33920-80GF 112200-3202
Vendors's code: 33920-80GF
Product code: 112200-3202
Barcode:
Code 39:
ISBN:
£139.40
Price
£139.40
£171.46
Price
£171.46
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Engine control unit Suzuki Denso 33920-80GF 112200-3202
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Will the 33920-80GF ECU fit your Suzuki?
We offer a used, fully working Denso engine control unit with part numbers 33920-80GF and 112200-3202. It fits if the same numbers appear on the label of the ECU in your car. Available locked or unlocked.
Engine control unit Suzuki Denso 33920-80GF 112200-3202
The 33920-80GF engine ECU is a Denso unit used in Suzuki vehicles. Using signals from the sensors, it manages the engine, including fuel quantity and injection timing. We do not state a model or engine that the label does not confirm; the part numbers decide the fit. The label shows the following markings: OM, EU MT 4WD, 33920-80GF, 080GB, 112200-3202. The marking “EU MT 4WD” on the label indicates the version with manual transmission (MT) and four-wheel drive (4WD) for the European market.
Numbers on the label
- 33920-80GF – Suzuki part number
- 112200-3202 – Denso number
- 080GB – additional marking
Compare them with the sticker on the ECU in your car. The number decides the fit, not the model alone – Suzuki used different ECU versions.
Symptoms of a faulty engine ECU
- the starter cranks but the engine does not fire,
- the diagnostic tool cannot connect to the ECU,
- an engine warning light and fault codes that remain after replacing sensors,
- signs of moisture or corrosion on the connectors or circuit board.
Before replacing the ECU, check the power supply, earths and wiring loom – a damaged wire or connector can cause similar symptoms.
Locked or unlocked version?
A locked ECU holds the data and immobiliser of the previous car – it is chosen by garages that will program it themselves. The unlocked version is prepared by us before dispatch.
We agree the preparation method case by case – it depends on the software version and the immobiliser. Ask us about it before ordering the 33920-80GF ECU.
All variants are described on our Locked & Unlocked ECUs page.
Questions and answers
| Is 112200-3202 the same ECU as 33920-80GF? |
|---|
| Yes. Both numbers appear on the label of the same ECU. |
| Will the ECU start the engine straight after fitting? |
| The locked version will not – it needs programming and matching to the immobiliser. With the unlocked version it depends on the preparation method, which we agree before purchase. |
| What condition is the ECU in? |
| It is a used part, fully working and in good condition. The warranty period is shown in the product features table. |
Not sure which variant to choose? Email contact@auto24parts.com with the numbers from your label – we will check the available options.
