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{Osprey CCM}
DTC Troubleshooting Data
Version: 2.0
Date: 28-Jul-17
Author: ERC
Page: 79 of 244
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TATA MOTORS Ltd.
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B1F46-13:- Fresh Air/RECIRC Feedback Power Supply - Circuit Open;
:
ISO Code
B1F46- 13
Customer Symptom
System is less responsive to user control and environmental
conditions
Fault Effects (On Vehicle)
Motor feedback voltage will be affected and motor will not
move to desired set point
Lamp Status (If Any)
NA
Fault Detection Condition
Fresh/RECIRC Door Control Motor Potentiometer Supply Line
- open
Normal Operating Condition
With the Fresh/RECIRC door Potentiometer supply line
connected to the harness and with Ignition ON, check the
voltage between blue connector pin no 1and ground. The
voltage should be 5V
Probable Trouble Area
1) Sensor supply wiring is open circuited
2) Sensor supply wiring is short circuited to ground
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