HARRIER BOOK 2

Q5/X451 FATC

DTC Troubleshooting Data

Version: 1.0

Date: 16-Oct-2018

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: 113 of 202

B1F4D-23:- Air Distribution Request Button-Signal Stuck Low

Overview:-

ISO Code

B1F4D – 23

Customer Symptom

Air Distribution Request Button cannot be manually

selected

Fault Effects (On Vehicle)

Air Distribution Request Button is stuck and mode

cannot be changed.

Lamp Status (If Any)

Air Distribution(Mode) is set to automatic airflow

mode

Fault Detection Condition

Air Distribution Request Button -Signal Stuck Low

Normal Operating Condition

The mode can be changed by pressing Air Distribution

button.

Probable Trouble Area

Mode switch component failure.

Healing Condition

Check and lubricate switch, replace control panel

Component Details:

Air Distribution

Button is shown in above image. This button used to change the Mode.

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