B0156Sun Load Sensor Circuit
The HVAC control module has detected an implausible signal from the sun load (solar) sensor, typically located on the dashboard. Automatic climate control uses this signal to bias cooling on the side facing the sun.
Can I keep driving? Yes
You can keep driving normally. Schedule a check soon so emissions and performance are not affected.
Sistema Afectado
Carrocería · Confort y seguridad (SRS)

Corresponde a la carrocería: airbags (SRS), climatización, cierre centralizado o iluminación.
Espacio para vendedores de repuestos
Aún no hay un anunciante en este espacio.
Symptoms You Will Notice
What you may observe when this code appears
- Warning light or symbol related to the affected system Comfort or safety function impaired
Possible Causes
The components or conditions that trigger this code
- 1Sun load sensor failed Wiring or connector fault
How to Fix It — Step by Step
Recommended diagnostic and repair procedure
- 1Difficulty: easy. Estimated time: 0.3-1.5 hours. Estimated cost: €30-€
- 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)
SRS / body modules
* Diagnosis only: $50–$150
Quick Info
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