`50 Author: Navya Krishnan/satyajit Copyright © TATA MOTORS Ltd. This document must not be used in anyway, such as copying and redistributing to third parties, without the consent of author. Kanger2.0 DTC Troubleshooting Data Version: 1.0 Date: 12-feb-2022 Pre-Check Points:- a) Open 3in1 PDU service cover as per the service manual and check for the damage of micro switch. Trouble Shooting:- Flow Diagram or table format for diagnosing the fault code Step no. Description Check Point if YES if NO 1 Remove the 12V LV battery negative terminal.After a minute connect the 12V LV battery negative terminal & "Ignition Switch" to ON position. Crank and wait for 2 minutes. Check for the fault code. Fault code P197F73 Is Present? Go to step 2 Repair complete. 2 Check for other DTC Fault code P19BB13, P1979E13, P197913, P197A13, P197F73 is present simultaneously? Record local snapshot of DTC and replace 3in1 Go to step 3 3 Remove 3in1 side signal connector, Check for continuity between HVIL PIN (pin n.2) and VCU Connector (pin n. A50) as per the below schematic. Is there proper continuity? Go to step 4 Make the connection proper and check this fault code again. 4 Check for fault code again Fault code P197D13 Is Present? Record local snapshot of DTC and replace 3in1 Repair complete DTC’s confirmation:- After rectification, ensure the following points by referring DCDC parameters using TML diagnostic tool before handing over to customer. a) DCDC converter charging LV battery in the range of 8V to 16V b) OBC will charge HV battery
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