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{Osprey CCM}
DTC Troubleshooting Data
Version: 2.0
Date: 28-Jul-17
Author: ERC
Page: 140 of 244
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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.
B1F22-12:- Air Distribution Feedback Power Supply – Circuit short to Battery;
:
ISO Code
B1F22 - 12
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
Mode Door Control Motor Potentiometer Supply Line - Circuit
short to battery
Normal Operating Condition
With the Mode door Potentiometer supply line connected to
the harness and with Ignition ON, check the voltage between
blue connector pin no 3 & ground. The voltage should be 5V
Probable Trouble Area
Sensor supply wiring is short circuited to battery
Healing Condition
NA
Component Details:
The Mode Door Actuator controls the direction of airflow. It selects which way air flows through the different ducts.
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 Mode Door Flap
and
Air Distribution Mode Door flap Position
(Internal Value)
for actual and target position of Actuator