Kanger 2.0 iVBAC DTC Troubleshooting data Version: 1.0 Date: 31-March-22 Author: ERC, Chassis CoC This document must not be used in any way, such as copying and redistributing to third parties, without the consent of author. Copyright © TATA MOTORS Ltd. P a g e | 123 C1021-2A :- HDC Switch short to battery or ground Overview: ISO Code C1021-2A Customer Symptom None Fault Effects (On Vehicle) ABS, EBD & ESC – Available Lamp Status (If Any) ABS, EBD & ESC – Available, HDC – Not Available Fault Detection Condition Faulty HDC Switch Normal Operating Condition Correct signal from HDC switch to I VBAC ECU Probable Trouble Area HDC Switch Healing Condition Fault rectification/Replace HDC Switch Component Details: Not Available Preliminary Checks: • Check for HDC switch wiring harness. • Check pin no 32 at I VBAC ECU 46 PIN connector for HDC switch input. There should not be any short circuit conditions with UBAT Pin no 1, ground pin no 14 & 46. HDC Switch: .
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