`58 Author: Navya Krishnan 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. Kanger 3.0 DTC Troubleshooting Data Version: 1.0 Date: 24-July-2023 Pre-Check Points: a) Check for insulation resistance at the input 3in1 (should be >500M ohms) b) Check for proper connections of 3in1 Battery connector c) Check for design intended HV battery 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 P197719 is Present? Go to step 2 Repair complete. 2 Check for HV battery fuse (MSD). Is the fuse blown? Replace the fuse Go to step 3 Go to step 3 3 Remove 3in1 side Battery connector and check for isolation between positive, body & negative, body. Is isolation resistance >500M ohms? Replace 3in1 combo Go to step 4 4 3in1 combo Is isolation resistance >500M ohms? Go to step 5 Replace the HV cables. 5 Connect the PDU connector & remove DC DC converter HV input connector and check for isolation between positive, body & negative, body of DC DC Is isolation resistance >500M ohms? Repair complete Go to step 1 Record local snapshot of DTC. Replace 3in1 combo
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