NEXON 3.0 EV DTC Troubleshooting Document for VCU Version: 2.0 Date: 22-Sep-2023 Copyright © TATA MOTORS Ltd. This document must not be used in anyway, such as copying and redistributing to third parties, without the consent of author. P305F - 68: - CCS DC Fast Charging- Unplugging of charging equipment required - event information Overview: ISO Code P305F - 68 Customer Symptom Vehicle would not go into charging mode Fault Effects (On Vehicle) The vehicle is drivable but DC Fast charging will not happen Lamp Status (If Any) Charging fault indication lamp is ON, on the cluster Fault Detection Condition DC FAST charging stopped since inlet temperature is not in the plausible range Normal Operating Condition DC fast charging is happening Probable Trouble Area Inlet temperature sensor Wiring harness connection to inlet temperature sensor Healing Condition If DTC trigger condition is healed, DTC is present only in memory Component Details: Inlet temperature sensor is fitted on charging gun inlet and used to observe temperature at charging gun and vehicle junction Preliminary Checks: NA Trouble Shooting: - 1. Remove the LV battery connections. Step No. Description Check point If Yes If No 1. Check for continuity between Inlet temperature DC positive bus sensor and EVCU Check for continuity between Charging gun inlet temperature DC positive sensor ground and signal pins C448A-4, C448A-1 and respective EVCU side signal pins C776A-78, C776A-50 Go to step 2 Problem is in wiring harness between Charging gun inlet temperature DC positive bus sensor and EVCU Action: Repair harness
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