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Q5/X451 FATC
DTC Troubleshooting Data
Version: 1.0
Date: 16-Oct-2018
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.
Author: ERC
Page: 96 of 202
B1F3F-71:- Fresh Air/RECIRC Drive Motor – Actuator stuck;
ISO Code
B1F3F- 71
Customer Symptom
No air selection 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)
Motor shall be disabled
Fault Detection Condition
Fresh/RECIRC Door Control Motor - Actuator stuck
Normal Operating Condition
With the Fresh/RECIRC feedback line connected to the
harness and with Ignition ON, check the voltage between
blue connector pin no 7 & ground or 23 & ground. The
voltage range should be in between 0.4 to 4.47 V
Probable Trouble Area
Motor is stuck because of a mechanical block or
obstruction in movement of flap
Healing Condition
Perform ignition ON/OFF for 11 Cycles for Auto Calibration
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) If the fault code exists, refer the corrective actions