Toyota Prius Hybrid Not Entering 'Ready Mode'? Mobile Specialist in London
If your **Toyota Prius Hybrid** fails to enter **"Ready Mode"** (non-start) or displays the **"Triangle of Death"** warning, the fault is critical and electronic, preventing the car from driving. This often signals a fault in the **12V auxiliary battery** (which powers the main computers), the **Inverter/Converter assembly**, or a problem within the **Hybrid Control Module (HCU/ECM)**. Our **mobile Toyota Hybrid specialist** service covers **London**, equipped with Techstream-level diagnostic tools to perform deep diagnostics on the **High Voltage (HV) system**, trace electronic failures, check **HV battery module health**, and perform coding right at your location, getting you back on the road safely.
🚨 HYBRID NON-START FAULT HOTLINE (24/7)
Call Our Mobile Toyota Specialist Now:
📞 **07779 836 677** (Primary) 📞 **07404 637 334** (Backup)Specialist Toyota Prius Hybrid Diagnosis & Control Unit Services:
We provide advanced electronic service targeting the complex Hybrid Synergy Drive (HSD) system:
- **12V Auxiliary Battery Diagnosis:** Checking and replacing the low-voltage battery often responsible for initiating the 'Ready Mode' sequence.
- **Inverter/Converter Fault Tracing:** Diagnosing communication errors, overheating warnings, or internal circuit failures in the Power Control Unit (PCU).
- **Hybrid Control Unit (HCU) Checks:** Diagnosing faults within the main system computer that manages the entire drivetrain.
- **HV Battery Module Imbalance Checks:** Using diagnostic tools to identify specific weak cell blocks causing system shut-down.
- **Hybrid System Warning Code Clearance:** Performing necessary electronic procedures to clear permanent fault codes and enable the 'Ready' state.
Common Toyota Prius 'Ready Mode' Faults We Fix
If your Prius is exhibiting any of these critical electronic failures, contact us for mobile diagnosis:
- Ignition switches on, but the car will not enter **"Ready" mode** (green icon).
- Dashboard displays the **red triangle warning** (Triangle of Death) or **Check Hybrid System** message.
- Vehicle is **completely non-start** (no crank, no hybrid engagement).
- Diagnostic codes pointing to **P3000 (Battery Faults)**, **P0A80 (Weak Battery)**, or **P0A94 (Inverter Fault)**.
- Vehicle attempts to start, but the engine only runs for a few seconds before shutting off.