{Osprey CCM} DTC Troubleshooting Data Version: 2.0 Date: 28-Jul-17 Author: ERC Page: 70 of 244 Copyright © TATA MOTORS Ltd. This document must not be used in any way, such as copying and redistributing to third parties, without the consent of author. B1F2A-14:- Cabin Temperature Sensor - Circuit Short to Ground or Open;: ISO Code B1F2A- 14 Customer Symptom System is less responsive to user control and environmental conditions Fault Effects (On Vehicle) Vehicle Interior Temperature cannot be evaluated. Heating and cooling will not be accurate. For intermediate set temperatures, time taken for cooling or heating will be more Lamp Status (If Any) NA Fault Detection Condition Incar Temperature sensor circuit - Short to Ground or Open. Normal Operating Condition Temperature sensor is Functional Probable Trouble Area 1) Sensor signal short to ground 2) Sensor signal is open circuited 3) Sensor soldering or mounting is not proper 4) No continuity between FATC ECU to Sensor Healing Condition NA Component Details: The temperature sensor is usually integrated directly in the control unit and transfers the actual interior temperature to the control unit. The measured value is used for comparison with the set point. Preliminary Checks: 1) Read Incar sensor ECU parameter Vehicle Interior Temperature Internal from the diagnostic tool 2) Change the temperature settings from 16 Deg to 30 Deg and check if the ECU parameter value is updating
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