Vehicle Platform & ECU Name DTC Troubleshooting Data Ver: 1.0 Date: 30/11/2019 Author: ERC Page 448 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 Trouble Shooting: Step Checks IF YES IF NO 1. Check the clutch sensor gap between the Sensor Magnet and pedal as per the Sensor mounting specification. Any deviations found? Mount the sensor as per the instructions Go to Next step 2. Is there continuity exists between 40% clutch switch pin 3 and EMS ECU pin B12 && 90% clutch switch pin 2 and EMS ecu pin B11. Go to step 3 Rectify the wiring harness connections as per the schematic 3 Check whether EMS ECU pins B11 / B12 are shorted to battery supply / Ground Rectify the wiring harness connections as per the schematic Go to Next step 5 Are there any pins damaged at EMS ECU Connector Replace the connector Go to step 6 6 Are there any pins backed out from the EMS ECU Connector Rectify/Replace Connectors Go to Step 7 7 Is clutch Sensor connector damaged or pins got backed out Rectify/Replace Connector Go to step 8 8 Are there any EMS ECU pins bent / damaged? Rectify / Call Hot Line Go to Next step 9 Fault Still Persists? Replace Clutch Sensor Go to Next step 10 Fault Still Persists after Clutch Sensor replacement? Call Hot Line Follow the above procedure again for fault rectification DTC’s confirmation (checks before handing over vehicle to customer): Read the Clutch State parameter in Diagnostic tool: When pedal is not pressed – Clutch Engaged When Pedal is partially pressed – Clutch Disengaged When the pedal is fully pressed – Clutch Fully disengaged
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