Section 23 (Air Conditioning System - Diagnostics)
WARNING: This page is about a different car, the 2005 Lexus LX 470. 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
- Problem Symptoms Table
- Terminals Of Ecu
- Diagnostic Trouble Code Chart
- 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 18: Exhaust gas sensor circuit (HC, CO)
- DTC 19: Rear Room Temperature Sensor Circuit
- DTC 21: Solar Sensor Circuit
- DTC 22: Compressor Lock Sensor Circuit
- DTC 23: Pressure Switch Circuit
- DTC 26: Rear Inlet Air Temperature Sensor Circuit
- DTC 31, 41: Front Air Mix Damper Position Sensor Circuit
- DTC 32, 42: Air Inlet Damper Position Sensor Circuit
- DTC 37, 47: Rear Air Mix Damper Position Sensor Circuit
- DTC 41: Front Air Mix Damper Control Servomotor Circuit
- DTC 42: Air Inlet Damper Control Servomotor Circuit
- DTC 47: Rear Air Mix Damper Control Servomotor Circuit
- DTC 61: Exhaust Gas Sensor Circuit (NOx)
- Back-up Power Source Circuit
- IG Power Source Circuit
- Blower Motor Circuit
- Compressor Magnetic Clutch Circuit