DTC B147D-11: Rear Right Room Temperature Sensor Circuit Short to Ground [12/2023 - ]: Description
WARNING: This page is about a different car, the 2024 Lexus TX 550h+. However, it is still accessible from the selected car via links, so may be relevant.
The No. 2 room temp. sensor (cooler thermistor) is installed in the deck trim side panel assembly RH to detect the rear cabin temperature, which is used to control the air conditioning system. The resistance of the No. 2 room temp. sensor (cooler thermistor) changes in accordance with the rear cabin temperature. As the temperature decreases, the resistance increases. As the temperature increases, the resistance decreases.
The air conditioning amplifier assembly applies voltage to the No. 2 room temp. sensor (cooler thermistor) and reads voltage changes due to changes in the resistance of the No. 2 room temp. sensor (cooler thermistor).
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory | DTC Output from | Priority | Note |
|---|---|---|---|---|---|---|---|---|
| B147D-11 | Rear Right Room Temperature Sensor Circuit Short to Ground | Diagnosis Condition:
Malfunction:
Detection Time:
|
|
Does not come on | Memorized | Air Conditioner | A | - |