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. PSCM DTC Troubleshooting Guide for Mando EPAS Version: 1.1 Date: 14/01/2019 Author: E&E Chassis - ERC Page12 Component Details: Steering Angle Sensor - This sensor is used for monitoring the angular position of the rotor. It provides the input to the PSCM system and if no data is available, PSCM functionality will not be available. Preliminary Checks: 1. Check visually steering angle sensor connector and wiring harness to PSCM ECU for any damage/open. In case of damage replace the steering column. 2. Visually check ECU steering angle sensor connector for damage. In case of damage replace the ECU. Trouble Shooting: YES NO YES YES NO 1. Ensure Pin 1 of torque and angle sensor is not open. 2. Ensure Pin 3 of torque and angle sensor is not open. 3. Ensure Pin 1 & Pin 4 of torque and angle sensor is not short. 4. Ensure Pin 4 of torque and angle sensor is not open. 5. Ensure Pin 3 & Pin 1 of torque and angle sensor is not short. 6. Ensure SAS is properly calibrated. Is DTC Present Stop Replace Wiring harness Replace ECU Is DTC Present Replace Steering Column Is DTC Present NO
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