Vehicle Platform & ECU Name DTC Troubleshooting Data Ver: 1.0 Date: 30/11/2019 Author: ERC Page 102 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 P0437- 00- Catalyst Temperature Sensor Circuit low Bank 2 Sensor 1 Overview: Code Cause Effect on Vehicle Fault Code: P0437- 00 1. Temperature Sensor connection 2. ECU connection 3. Electrical wiring 4. Wiring connector breakage 5. Temperature Sensor malfunctioning 1.CE Lamp On 2.Torque Reduction 3. Reduced Vehicle Performance Checkpoints: Check Battery Voltage Trouble Shooting Steps: Sr. No. Steps Specifications Step 1 Check connector is connected properly Physical check Step 2 Check for continuity between catalyst temperature sensor (T4) connector. Check the End to end continuity using multi-meter Step 3 Check the sensor physically Physical check Step 4 If the problem persists, replace the sensor - Circuit Schematic Diagram:
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