Section 452 (Air Conditioning System - Diagnostics)
WARNING: This page is about a different car, the 2002 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.
- Service Precautions
- How To Proceed With Troubleshooting
- Customer Problem Analysis Check
- Pre-Check
- Diagnostic Trouble Code Chart
- Terminals Of Ecu
- Problem Symptoms Table
- Circuit Inspection
- DTC 11: Room Temperature Sensor Circuit
- DTC 12: Ambient Temperature Sensor Circuit
- DTC 13: Evaporator Temperature Sensor Circuit
- DTC 14: Engine Coolant Temperature Sensor Circuit
- DTC 21: Solar Sensor Circuit
- DTC 22: Compressor Lock Sensor Circuit
- DTC 23: Pressure Switch Circuit
- DTC 31 & 41: Air Mix Damper Position Sensor Circuit
- DTC 32 & 42: Air Inlet Damper Position Sensor Circuit
- DTC 33 & 43: Air Outlet Damper Position Sensor Circuit
- DTC 41: Air Mix Control Servomotor Circuit
- DTC 42: Air Inlet Control Servomotor Circuit
- DTC 43: Air Outlet Damper Control Servomotor Circuit
- IG Power Source Circuit
- Back Up Power Source Circuit
- Heater Main Relay Circuit
- Blower Motor Circuit
- Compressor Circuit
- Water Pump Circuit
- Converter Circuit
- PTC Heater Circuit (Quick Heater)
- PTC Heater Circuit (Heater Radiator)
- Radiator Fan And Condenser Fan Circuit