Control PCB — Nissan Gravite
Category: AC | Severity: high | Cost: ₹5,000–₹20,000
What is Control PCB?
The PCB controls AC operations and processes sensor inputs.
How Control PCB Works
Uses microcontroller to regulate compressor, fan, and airflow.
Why is Control PCB Important?
Central brain of HVAC system.
Common Problems
- Circuit failure
- Short circuit
Symptoms
- AC not responding
- Erratic behavior
Causes of Failure
- Moisture
- Voltage fluctuation
Impact on Car Performance
Complete AC malfunction.
DIY Fix Guide — Step by Step
- Check fuse
- Inspect PCB visually
- Replace if burnt
Maintenance Tips
- Avoid water exposure
Replacement Cost in India
Estimated range: ₹5,000 – ₹20,000
Where to Buy Online
When to Replace Control PCB
Replace when system is unresponsive.