Vehicle Platform & ECU Name DTC Troubleshooting Data Ver: 1.0 Date: 30/11/2019 Author: ERC Page 115 of 610 Copyright by TATA MOTORS Ltd. This document must not be used in any way, such as copying and redistributing to third parties, without our consent P245C-11 - EGR Cooler Bypass Control Circuit Low Bank 1 Overview: Code Cause Effect on Vehicle Fault Code :P245C-11 1. EGR EVRV connector connection 2. Electrical wiring 3. ECU connection 4. EVRV malfunctioning. 1. Turns on CE lamp Checkpoints: 2. Check Electrical connections Trouble Shooting Steps: Sr. No. Steps Specifications Step 1 Check connector is connected properly Remove and connect again Step 2 Check for continuity between sensor connector pins 1, 2 and ECU pins battery supply (12V), A72 respectively Check the continuity between the actuator and ECU Step 3 Check the EVRV physically Connect the ECU connector properly Step 4 If the problem persists, replace the EVRV Physical check Circuit Description: ECM in accordance with engine and driving conditions gives a PWM output to directly drive a vacuum operated actuator (EVRV) which in turn drives the EGR bypass valve. Hence ECM indirectly controls the opening and closing of EGR bypass valve. EVRV provides variable vacuum levels to drive the EGR bypass valve. EGR plays an important role in emissions control by altering rate of flow of exhaust gases from exhaust manifold. Circuit Schematic Diagram: Component location and image:
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