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 | 178 C1037-01 :- Automated Parking Brake switch-General Electrical Failure Overview: ISO Code C1037-01 Customer Symptom APB failure lamp on Fault Effects (On Vehicle) ABS, EBD & ESC – Available. APB - Not Available Lamp Status (If Any) ABS, EBD & ESC– OFF APB - ON Fault Detection Condition APB function will not work Normal Operating Condition APB works when there is correct input from APB switch Probable Trouble Area ECU under voltage causes under voltage of APBButton input circuitry, In the connection lines of the APB button there is an electrical failure like shortcut to GND or power supply line interruption etc. APB Button related ASIC Configuration errors Electrical system failure APB Wire Defective APB Switch Defective Healing Condition After rectifying all the functional failures in the electrical system/Replacing APB Switch. Preliminary Check: 1. Check APB wires continuity from APB switch (below central console) to I VBAC ECU connector. There should not be any short circuit conditions. I VBAC ECU pin APB SWITCH pin Pin no. 45 Pin no. 6 Pin no.37 Pin no.7 Pin no. 35 Pin no.5 Pin no.20 Pin no.8 Note: After rectification please give Ignition latch to heal the DTC.
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