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DTC Troubleshooting Data
Version: 2.0
Date: 28-Jul-17
Author: ERC
Page: 16 of 244
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TATA MOTORS Ltd.
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B1F3E-54:- Temperature Door Control Motor Calibration Fault;
:
ISO Code
B1F3E-54
Customer Symptom
No air temperature control (manual or automatic)
Fault Effects (On Vehicle)
The motor is blocked and its motion toward either end is not
possible
Lamp Status (If Any)
NA
Fault Detection Condition
Temperature Door Control Motor Calibration fault
Normal Operating Condition
Air Temperature Drive Motor is Functional
Probable Trouble Area
Motor learning is not accomplished because of
1) Shorting of Motor drive to battery or ground
2) Motor is stuck while calibrating
3) System over/under voltage during calibration
4) Motor feedback fault short to battery or ground
Healing Condition
NA
Component Details:
The actuator controls the position of the temperature blend door based on the voltage signal from the FATC module.
Potentiometer, inside the actuator, sends a feedback signal to the controller and controller cuts off the voltage signal
coming from the controller when the required door position is achieved.
Preliminary Checks:
Switch On the IGN & perform the following check.
1) Connect the Diagnostics tool & check the DTC fault code
2) If the fault code exists, refer the Trouble Shooting