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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: 25 of 202
B1F2D-13:- Air Temperature Motor Drive Line- Circuit Open;
ISO Code
B1F2D-13
Customer Symptom
No air temperature control (manual or automatic)
Fault Effects (On Vehicle)
Motor movement is not possible
Lamp Status (If Any)
Motor To be Disabled
Fault Detection Condition
Temperature Door Control Motor Drive Line - Circuit Open
Normal Operating Condition
Air Temperature Drive Motor is Functional and check the
voltage between blue connector pin no 4 & ground and 20
& ground of the Connector. The voltage range should be in
between 0 to 14 V.
Probable Trouble Area
Either or both Motor drive lines is open circuited
(Can be detected only when motor movement is
requested)
Healing Condition
If there is no continuity between the Motor drive line &
ECU connector then correct the wiring harness
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)
Read ECU parameter
Target Position of Temperature Door Flap
and
Temperature Door flap Position (Internal
Value)
for actual and target position of Actuator