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P030CIgnition A Control Signal Circuit High

⚙️ Powertrain (Motor y Transmisión)
Moderada

Ignition A control signal stuck high — short to B+. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.

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Can I keep driving? With caution

You can drive to the shop, but do not postpone the repair. The problem may worsen and damage other components.

Sistema Afectado

Sistema de Encendido · Bujías, bobinas y cilindros

Vehículo despiece — Sistema de Encendido

El problema afecta la combustión en uno o más cilindros: bujías, bobinas o inyectores.

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Possible Causes

The components or conditions that trigger this code

  • 1Short to B+ Connector pins corroded - high contact resistance Supply wire pinched against B+ source
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How to Fix It — Step by Step

Recommended diagnostic and repair procedure

  1. 1Difficulty: medium. Estimated time: 0.5-2.5 hours. Estimated cost: €60-€
  2. 2DIY possible

Note: This information is for general reference. For precise diagnostics and safety repairs, always consult a certified mechanic.

Estimated Cost

Approximate range in USD (varies by region and shop)

$50$300

Spark plugs + coils

* Diagnosis only: $50–$150

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