{Osprey CCM} DTC Troubleshooting Data Version: 2.0 Date: 28-Jul-17 Author: ERC Page: 91 of 244 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. B1F4B-56:- BCM configuration Error- Invalid/Incompatible Configuration;: ISO Code B1F4B-56 Customer Symptom Rear Defogger LED is not ON Fault Effects (On Vehicle) Rear window defogging is not happening Lamp Status (If Any) NA Fault Detection Condition Rear Defogger is not getting ON Normal Operating Condition FATC is present in vehicle and FATC is enabled in BCM ECU Probable Trouble Area FATC is present in vehicle , but ETC is enabled in BCM ECU Healing Condition NA Component Details: FATC is present in vehicle and FATC is enabled in BCM ECU Whenever requested for rear defogger to be on , rear defogger is working according to request. Preliminary Checks: Switch On the IGN & perform the following check. 1) Connect the Diagnostics tool & check the DTC fault code
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