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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: 120 of 202
Trouble Shooting:-
Is DTC
B1F33-23 is
Present?
Check for Auto Request
Button functionality.
Check the Auto functionality
by pressing Auto button
Is Auto button
stucked?
Check and lubricate switch if still the Auto
button is stucked then replace control
panel.
Clear the DTC from the ECU
memory.
Turn Ignition OFF & ON.
Check the Auto functionality by
pressing Auto button
Stop
Stop
YES
NO
YES
NO
Turn ON Ignition.
Connect the TML Diagnostic Tool.
Check the status of DTC’s (Memorized/Current)
Record the DTC & Clear DTC’s
Turn Ignition OFF & ON
Verify If DTC B1F33– 23 is present