ELECTRICAL Code 18 Medium to diagnose

55V circuit boven bereik (Code 18)

Foutcode 18 is het spiegelbeeld van Code 17 — in plaats van dat de 55V-rail te laag is, heeft de EMM systeemspanning boven 57V gedetecteerd. Een ongeregelde of oplaadende stator kan de condensator vernietigen en uiteindelijk injectorstuurcircuits in de EMM uitbranden.

Hardware Care repairs this fault, fixed price, 24-month warranty

What you're seeing

  • LED 1 brandt op de EMM bij opstarten of onder belasting
  • CHECK ENGINE waarschuwing actief
  • Motortoerental beperkt tot 1.200 TPM
  • Waarschuwingsalarm klinkt gedurende circa 1 minuut
  • Foutcode 18 opgeslagen in het EMM-foutlogboek
  • Mogelijke brandlucht of opzwellen van condensator in ernstige gevallen

Why this happens

  • Defecte 55V-spanningsregelaar binnenin de EMM (meest voorkomend)
  • Verslechterende of defecte condensator die spanningspieken veroorzaakt
  • Stator die overmatige spanning produceert door kortgesloten windingen
  • Slechte motoraardverbinding die spanningsreferentiefouten veroorzaakt
  • Intermitterende fout voor de condensator volledig defect gaat (codes 17 en 18 wisselen af)

Affected engines

Treft alle Evinrude E-TEC-motoren met het stator-aangedreven 55V-systeem. Over-spanningsfouten zijn minder frequent dan onderspanning maar schadelijker als ze niet worden aangepakt.

How to diagnose step by step

1

Stap 1 — Controleer de vliegwielmagneten**

Begin bij het vliegwiel. Verwijder de deksel en controleer op corrosie of schade.

2

Stap 2 — Test de condensator**

Een condensator die capaciteit verliest kan de 55V-rail niet meer afvlakken, waardoor spanningspieken Code 18 intermitterend activeren. Ontlaad de condensator volledig vóór het testen.

3

Ontladen:* Verbind kort een jumperdraadje tussen beide condensatorklemmen en een schone motoraarde.

4

Testen (ohmmeter op HOGE ohm-schaal):*

- **Goede condensator:** Weerstand begint laag en stijgt gestaag richting bijna oneindig. - **Kortgesloten condensator:** Directe volledige continuïteit — direct vervangen. - **Open condensator:** Geen lezing (OL) vanaf het eerste moment.

5

Stap 3 — Meet live 55V-rail spanning**

Met een multimeter op DC volt, sondeer de 55V-aanvoerklem op de EMM-connector terwijl de motor op 1.500–2.000 TPM draait. Spanning moet 52–57V DC meten. Een consistente meting boven 57V bevestigt een over-spanningssituatie.

6

Stap 4 — Test de statoruitgang (dynamische test)**

Met de stator losgekoppeld van de EMM, sondeer de statoruitgang met AC volt terwijl u de motor aanslingert. Te hoge ruwe AC-uitgang (boven 70V bij gemiddeld toerental) suggereert kortgesloten statorwindingen.

7

Stap 5 — Controleer aardverbindingen**

Een slechte aardverbinding veroorzaakt zwevende spanningsreferenties in de EMM. Reinig en draai alle aardverbindingen vast.

8

Stap 6 — EMM-regelaarfout**

Als condensator, stator en aarding allemaal goed testen maar de 55V-rail nog steeds boven 57V zit, heeft de interne 55V-spanningsregelaar in de EMM open gefaald. Stuur de EMM naar Hardware Care.

This fault is repairable.
Fixed price. 24-month warranty.

Code 18 ongediagnosticeerd laten zal uw condensator en injectors beschadigen. Wij repareren de EMM-regelaar voor een vaste prijs — voordat de schade groter wordt.

Turnaround typically 3–7 working days
Free diagnosis if we cannot repair

How it works

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1

Step 01 / 05

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2

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3

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4

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5

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What customers say

★★★★★

James Clarke
GB United Kingdom
★★★★★
Fast, kept well informed, fixed the issue. Had to pay VAT charge when importing back to the UK which I hadn't factored into the costs, but still better value than a new one.
Google review · 1j geleden
robert eichholz
FI Finland
★★★★★
My Evinrude E-Tec 50 / 2014, driven only less than 150h, started signalling "Check Engine". The test program showed "Injectors voltage over 55V". Found Hardware Care and on theis homepage I could insert the type and "ser...
Google review · 1j geleden
Jeremy Nakat
AU Australia
★★★★★
had my evinrude etec blow the SAC circuit in its computer looked at every option all i could find was a new emm for 3k or for less then half that for a rebuild by hardware care, I had my doubts and was abit worried sendi...
Google review · 1j geleden
Paul W
GB United Kingdom
★★★★★
My Evinrude Etec 50hp failed completely and the issue was traced to a failure of the engine management system (EMM) which is both complex and expensive to repair or replace. A couple of acquaintances who had first hand e...
Google review · 2j geleden
Danie Bruyns
ZA South Africa
★★★★★
I have sent 2 EMM's to Hardware Care for repair in the past year. Both times I was very satisfied with the Excellent Service provided. I will not hesitate to deal with Hardware Care any time I need to, in future. Danie -...
Google review · 2j geleden
Mike Moulder
US United States
★★★★★
2008 Evinrude E-Tec 60hp: All the EMM repair shops in the U.S. said this "EMM could not be repaired and that my engine is trash". I reached out to Hardware Care; they stepped me through their process and I'm sure glad I...
Google review · 2j geleden
Peter Kuhn
US United States
★★★★★
The repair service is much easier, less expensive, and quicker than I'd expected. Our 2017 Evinrude Etec 40 hp motor's EMM went out from California to the Netherlands 12/28/23 and returned 1/31/23. Total cost including...
Google review · 2j geleden
Kevin Bray
US United States
★★★★★
Because of the difference in time, some communications from me got there when they were asleep! None the less they responded to each of my many questions over the last 4 Months. The time was extended understandably due...
Google review · 2j geleden
Ton Kalkman
NL Nederland
★★★★★
I was very pleased when i found out that it was possible to let my ECU fixed for a third of the cost of a new one, and also in the Netherlands, were i live. When you send your ECU in they send you updates about the progr...
Google review · 2j geleden
stephen mccalvin
US United States
★★★★★
Repair time was exactly as they predicted. Shipping there and back was super easy as they arranged the pickup from my office in Florida. Once returned I installed the repaired EMM and my boat fired right up with no is...
Google review · 2j geleden

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