P2609Intake air heater, Powertrain Control Module (PCM) failure, Wiring issue
⚙️ Powertrain (Motor y Transmisión)🏭 Specific to Audi
The intake air heater system did not raise intake temperature by the expected amount during cold-start support. Suggests low current draw, poor connection to the grid, or a failed temperature feedback path.
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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
Motor · Powertrain
La falla pertenece al grupo motopropulsor (motor y gestión electrónica).
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Possible Causes
The components or conditions that trigger this code
- 1High-resistance battery feed to the heater
- 2Intake air temperature sensor reads with offset
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Estimated Cost
Approximate range in USD (varies by region and shop)
$100—$800
Varies by diagnosis
* Diagnosis only: $50–$150
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Quick Info
CodeP2609
CategoryMotor (P)
ManufacturerAudi
SeverityModerada
Symptoms0
Causes2
Solution steps0
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