Vehicle Platform & ECU Name DTC Troubleshooting Data Ver: 1 Date: 23/11/2022 Author: ERC Page 471 of 834 Copyright by TATA MOTORS Ltd. This document must not be used in any w ay, such as copying and redistributing to third parties, w ithout our consent P00D5-18- HO2S Sensor Correlation Bank 1 Sensor 1/Bank 1 Sensor 2 Low Overview: Code Cause Effect on Vehicle Fault Code: P00D5-18 1. High error between O2 sensor 1 and 2 2. Either of the O2 Sensor is drifted 3. Carbon Buildup on O2 Sensors 4. Excessive Exhaust leak 5. Leakage/Damage in DP tubes 6. Corroded or damaged connector 7. Faulty or damaged wiring 8. ECU terminal pin damage or bend 9. ECU connector pin backout 1. CE Lamp ON 2. Increased fuel consumption Lamp status: Check Engine Lamp on Malfunction Indicator Lamp off Check points: Check for any AMF, EGR, Throttle, MDP, VGT, ADC, Injector related faults. If present, address it first Trouble Shooting Steps: Sr. No. Steps Specifications Step 1 Check for physical damage in O2 sensors/ Connector - Step 2 Check for any damage in electrical wiring/Connector (Burnt or cut wire) - Step 3 Check the electrical pin connections in B74, B26, B10, B57, B25, B7. Check for any pin backout in lambda sensor connector - Step 4 Check the ECU terminal pin for any damage or bend. Check the ECU connector for any pin backout - Step 5 Check for foreign particles in the connector - Step 6 Check for any carbon Buildup on O2 Sensors. Clean the carbon deposits without damaging the O2 sensors. -
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