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 Volvo V40 P30813727 1TED014465
Vendors's code: 1TED014465
Product code: P30813727
Barcode:
Code 39:
ISBN:
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Engine control unit Volvo V40 P30813727 1TED014465
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P30813727 engine ECU for your Volvo V40 – how to check the fit
This is a used, working engine ECU marked P30813727 and 1TED014465. We always confirm the fit against the label. Ask us about preparation for fitting before you buy.
Engine control unit Volvo V40 P30813727 1TED014465
The module P30813727 controls the engine – it reads sensor data and uses it to regulate the fuel system. It is a part for the Volvo V40.
ECU markings
- P30813727 – Volvo part number
- 1TED014465 – additional marking
Compare them with the sticker on the ECU in your car. The number decides the fit, not the model alone – Volvo used different ECU versions.
When the ECU may be faulty
- the engine will not start despite a good power and fuel supply,
- no communication with the ECU during diagnostics,
- limp mode with no sensor fault,
- damage after water ingress or a voltage spike.
Before replacing the ECU, check the power supply, earths and wiring loom – a damaged wire or connector can cause similar symptoms.
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 P30813727 unit and send us the numbers from the label of your ECU.
All variants are described 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 P30813727 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.
