Vehicle Platform: OSPREY ECU Name: Hella Body Control Module (BCM) DTC Troubleshooting Data Version: 1.4 Date: 15 May 2018 Author: Body CoC Page: 106 of 855 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. Trouble Shooting:- Voltage fluctuates between 0V and 14V? A Yes Disconnect BCM ECU power supply connector. Check voltage b/w pin 1& 2. (Refer Connector View & Information) No Is DTC Present? Yes No Stop 1. Connect the TML Diagnostic Tool. 2. Turn the Ignition ON 3. Check the status of DTC’s (Memorized/Current) 4. Record the DTC & Clear 5. Turn Ignition OFF & ON. 6. Read ECU parameters 7007(Control Module Input Power “3”) using diagnostic tool Range: 9 to 16 V. 7. Verify If DTC U100A – 16 is present Replace wiring harness (Vehicle side) Check resistance between vehicle ground and ground at the power supply connector. Resistance < 1 Ω? No Yes
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