Vehicle Platform: Nexon-EV ,Nexon-MCE ECU Name: Telematics Control Unit (TCU) DTC Troubleshooting Data Version: 1.4 Date: 16-09-2020 Author: TCM COC Page: 10 of 121 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. Pin Diagram and Description Pin # Signal Name Signal Description 1 MC_MIC_IN_P Audio input 2 MC_MIC_IN_N Audio input 3 GND_MAIN GND 4 uC_DIG_ANG_3 Digital/analog Signal I/P 5 CAN Shield CAN GND 6 CAN1_L Diagnostic CAN 7 CAN1_H Diagnostic CAN 8 uC_DIG_ANG_2 Digital/analog Signal I/P 9 uC_DIG_ANG_1 Digital/analog Signal I/P 10 RESERVED Reserved 11 GND_MAIN GND 12 Batt_IN_24V BATTERY+ 13 MC_SPK_OUT_P Audio output 14 MC_SPK_OUT_N Audio output 15 GND_MAIN GND 16 RESERVED Reserved for E-Call LED - Active Low - Component to be interfaced info needed (TML) 17 CAN Shield CAN GND 18 CAN2_L Vehicle CAN 19 CAN2_H Vehicle CAN 20 RESERVED Reserved 21 RESERVED Reserved 22 MC_DIG_OP4(High side) HW wake output for BCM 23 RESERVED Reserved for E-Call LED - Active High - Component to be interfaced info needed (TML) 24 IGN_KL15 Ignition input 25 MC_MIC_OUT_P Audio out 26 MC_MIC_OUT_N Audio out 27 GND_MAIN GND 28 uC_DIG_ANG_4 Digital/analog Signal I/P 29 uC_DIG_ANG_5 Digital/analog Signal I/P 30 RS485_D+ Signal 31 RS485_D- Signal 32 MC_ANG/eCALL Wake input from VCU (Applicable only for EVs) -- To be Splice Short with Pin 36 33 MC_ANG/b CALL Signal 34 MC_DIG_OP1(Low side) Digital O/P 35 MC_DIG_OP6(High side) Digital O/P 36 MC_ANG/eCALL Wake input from VCU (Applicable only for EVs) - To be Splice Short with Pin 32
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