X104 CNG (Nexon) 4” Instrument Cluster DTC Troubleshooting Data Version: 2.0 Date: 19-August-24 Author: Suraj Shivsharan Page: 9 of 160 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. Component Details:- OAT Sensor - This sensor gives direct resistive input to the Cluster w.r.to the temperature changes in Outside environment. Refer below table for resistance Vs temperature mapping. Preliminary Checks:- 1. Check Battery Voltage is normal in the range (9v - 16v) 2. Check OAT lines for Pinch/Cut. 3. Check ECU & Sensor pins for oxidation, bending & damage. 4. Check and ensure OAT Sensor is giving linear Resistance output w.r.to the Temperature change. 5. Check Sensor resistance on Pin no. 29(OAT i/p) & 31(OAT Gnd) of the wired connector, whether it is according to the design specifications (between 320 to 100.923k ohm).
RkJQdWJsaXNoZXIy MTIwNTUz