Section 555 (Air Conditioning System - Diagnostics)
WARNING: This page is about a different car, the 2003 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.
- 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: Front Room Temperature Sensor Circuit
- DTC 12: Ambient Temperature Sensor Circuit
- DTC 13: Front Evaporator Temperature Sensor circuit
- DTC 14: Engine Coolant Temperature Sensor Circuit
- DTC 17: Rear Evaporator Temperature Sensor Circuit
- DTC 19: Rear Room Temperature Sensor Circuit
- DTC 21: Solar Sensor Circuit
- DTC 22: Compressor Lock Sensor Circuit
- DTC 23: Pressure Switch Circuit
- DTC 31: Front Air Mix Damper Position Sensor Circuit
- DTC 32: Air Inlet Damper Position Sensor Circuit
- DTC 37: Water Valve Damper Position Sensor Circuit
- DTC 41: Front Air Mix Damper Control Servomotor Circuit
- DTC 42: Air Inlet Damper Control Servomotor Circuit
- DTC 47: Water Valve Damper Control Servomotor Circuit
- IG Power Source Circuit
- Back - Up Power Source Circuit
- ACC Power Source Circuit
- Vehicle Speed Signal Circuit
- Igniter Circuit
- Blower Motor Circuit (Front A/C)
- Blower Motor Circuit (Rear A/C)
- Compressor Circuit