Gravitas FATC Gen 3 DTC Troubleshooting Data Version: 1.0 Date: 15-July-2023 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. Author: ERC Page: 295 of 301 Check Frequency -ms 1000 FDC Counter increments 20 FDC Counter decrements 20 FDC Increment Strategy As per standard FDC increment strategy as specified in ISO 14229-1 FDC Decrement Strategy As per standard FDC decrement strategy as specified in ISO 14229-1 Monitoring Conditions Act, RUN ECU Specific Monitoring Conditions N/A Accessibility Attribute Gen LimpHome Effect 1. CCM shall bypass the Logic of AQI Value based Actuator Control (Blower and Air Inlet) and follow the Existing AUTO logic(CCM) 2. CCM shall communicate 'Error'/'Implausible' state to Head Unit. 3. Dust Sensor Logic shall be non-functional Probable causes Sensor Overheat, Temperatur Sensor Fault, Dust Sensor's Motor Fault Investigative/Rectification/Repair actions Shut OFF the operation off Sensor till fault present Fault Subgroup ISO Defined Group Local Snapshot 7001, 7002, 4B0C, 4B0D, 4B0F Fault Deletion Service 14 Stack Overflow Customer Symptom Use will see '::' in case of this failure( DASH DASH) SDD Symptom N/A Fault Effects - Component Feature shuts OFF Fault Effects - Sub-system HU, FATC , Dust Sensor Fault Effects - System N/A Fault Effects - Network N/A Fault Effects - Vehicle Feature shuts OFF Trouble Shooting:- This DTC will Shut OFF the operation off Sensor till fault present. Once the sensor recover from fault operation of Dust sensor Resume. If Not Recovered from the fault then Dust sensor needs to be replaced. DTC’s confirmation: - After rectification, ensure the following points using TML diagnostic tool before handing over to customer. a) DTC should not be present in ECU memory. Circuit Schematic Diagram:-N.A
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