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{Osprey CCM}
DTC Troubleshooting Data
Version: 2.0
Date: 28-Jul-17
Author: ERC
Page: 87 of 244
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TATA MOTORS Ltd.
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B1F2C-12:- Fresh Air/RECIRC Motor Drive Line- Circuit Short to Battery;
:
ISO Code
B1F2C- 12
Customer Symptom
No air selection control (manual or automatic)
Fault Effects (On Vehicle)
If polarity of motor lines is affected by fault, motor will move to
either end stop
Lamp Status (If Any)
NA
Fault Detection Condition
Fresh/RECIRC Door Control Motor Drive Line - Circuit short
to battery
Normal Operating Condition
With the Fresh/RECIRC motor drive line connected to the
harness and with Ignition ON, check the voltage between blue
connector pin no 12 & ground or 13 & ground. The voltage
range should be in between 0 to 14 V
Probable Trouble Area
Motor drive line is shorted to battery
Healing Condition
NA
Component Details:
The recirculation/fresh air selector door actuator motor controls the position of the door which allows fresh air or
recirculation air, or a combination of the two, into the vehicle. The motor is mounted on the recirculation /fresh air duct.
Preliminary Checks:
Switch On the IGN & perform the following check.
1) Connect the Diagnostics tool & check the DTC fault code
2) Read ECU parameter value
Target Position of Air-Inlet Door Flap
and
AI Door flap Position (Internal Value)
for
actual and target position of Actuator