Last Modified: 7-3-2017 6.8:8.0.40 Doc ID: RM0000018MW004X agn Model Year Start: 2007 Model: LX470 Prod Date Range: [08/2006 - ] Title: AIR CONDITIONING: AIR CONDITIONING SYSTEM: 11; Room Temperature Sensor Circuit; 2007 MY LX470 [08/2006 - ] DTC 11 Room Temperature Sensor Circuit DESCRIPTION This sensor detects the temperature inside the cabin (front side) and sends the appropriate signals to the A/C amplifier. DTC NO.
DETECTION ITEM TROUBLE AREA 11 Open or short in front room temperature sensor circuit Front room temperature sensor Harness or connector between front room temperature sensor and A/C amplifier A/C amplifier WIRING DIAGRAM INSPECTION PROCEDURE PROCEDURE CHECK VOLTAGE BETWEEN TERMINALS FRTR AND FRSG OF AIR CONDITIONING AMPLIFIER 1. (a) Remove the A/C amplifier with the connectors still connected. (b) Turn the ignition switch ON. (c) Measure the voltage between terminals FRTR (A48-17) and FRSG (A48-18) of A/C amplifier connector at each temperature. Standard voltage: 1.8 to 2.2 V at 25°C (77°F) 1.2 to 1.6 V at 40°C (104°F) HINT: As the temperature increases, the voltage decreases.
However, if DTC11 is displayed, check and replace the A/C amplifier. OK REPLACE AIR CONDITIONING AMPLIFIER NG INSPECT FRONT ROOM TEMPERATURE SENSOR 2. cardi OK REPLACE AIR CONDITIONING AMPLIFIER