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 Honda Prelude 2.0 37820-P11-G01 37820P11G01
Vendors's code: 37820P11G01
Product code: 37820-P11-G01
Barcode:
Code 39:
ISBN:
€162.60
Price
€162.60
€200.00
Price
€200.00
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Engine control unit Honda Prelude 2.0 37820-P11-G01 37820P11G01
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37820-P11-G01 engine ECU for your Honda Prelude 2.0 – how to check the fit
We offer a used, working engine control unit with part numbers 37820-P11-G01 and 1GA. It fits if the same numbers appear on the label of the ECU in your car. Ask us about preparation for fitting before you buy.
Engine control unit Honda Prelude 2.0 37820-P11-G01 37820P11G01
This used 37820-P11-G01 engine computer for the Honda Prelude 2.0 processes sensor signals and calculates the engine’s operating parameters.
ECU markings
- 37820-P11-G01 – Honda part number
- 37820P11G01 – the same number without the dash
- 1GA – additional marking
You will find the numbers on the casing of your current ECU. A similar-looking unit will not necessarily fit – the full number is what counts.
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.
Rule out the battery, fuses and connectors first – they are often the real cause.
Preparation for fitting
A used engine ECU usually has to be programmed and matched to the car’s immobiliser.
Before ordering, ask us about the preparation options for the 37820-P11-G01 unit and send us the numbers from the label of your ECU.
Read more about the variants on our Locked & Unlocked ECUs page.
Questions and answers
| Can I fit an ECU with a different number suffix? |
|---|
| A different suffix can mean a different software or hardware version. Send us a photo of the label and we will check whether the 37820-P11-G01 ECU is suitable. |
| Will the ECU start the engine straight after fitting? |
| A used ECU usually needs programming and matching to the immobiliser. Ask us about the preparation options 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. |
Any questions? Send a photo of your ECU label to contact@auto24parts.com – we will tell you whether this unit will fit.
