Vehicle Platform: NEXON ECU Name: ESCL DTC Troubleshooting Data Version: 1.4 Date: 09 Jan 2018 Author: Hitesh Kaneria Page: 57 of 88 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. Functional DTC B1022–96: Steering lock unable to lock - component internal failure Overview: ISO Code (DTC Code) B1022-96 Customer Symptom ESCL unable to lock the steering wheel Fault Effects (On Vehicle) ESCL unable to lock the steering wheel Lamp Status (If Any) NA Fault Detection Condition ESCL log this DTC when ESCL’s hardware Motor timeout during ESCL unlock to lock process. Normal Operating Condition ESCL internal hardware motor shall not be timeout during ESCL locking. Probable Trouble Area ESCL internal hardware failure Healing Condition ESCL ECU replacement Table 19: B1022-96 overview details Component Details: ESCL ECU is located on steering column behind steering wheel. ESCL ECU locks and unlocks the steering wheel based on CAN messages received from PEPS, EMS, ABS and BCM. Preliminary Checks: 1. Check Battery Voltage (9V-16V). 2. Check EMS, PEPS, BCM and ABS ECU’s signals are available on CAN bus by confirming that ABS, EMS, BCM and PEPS related DTCs are not available in ESCL. 3. Check vehicle is getting lock /unlock by using UID. Troubleshooting: Start Stop 1. Keep vehicle in static condition. 2. Turn ignition ON -> OFF Replace ESCL ECU Note: Refer ESCL ECU replacement procedure doc to replace ESCL ECU.
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