Q501 4 Cylinder MT Application DTC Troubleshooting Data Version: 0.1 Date: 21-Sep-2018 Prepared By: Mithi Prasad, Sarang Kulkarni, Manish Gupta Checked By: Yogesh Jadhav Approved By: Satish Kumar P Page: 152 of 1052 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. P3013-24: Economy mode switch struck detection Overview: DTC Description (User Friendly) Economy mode switch struck detection ECU Pin Number K034 – Input signal to EMS from ECO Mode Switch Customer Symptom MIL OFF, CEL ON. Engine will run in default normal / City mode. Fault Effects (On Vehicle) Engine will run in default normal / City mode. Lamp Status (If Any) CEL ON. CEL Turns Off as and when fault condition is not present / healed. Fault Detection Condition (Root cause) When the Eco switch is struck for a time greater than debounce time. Normal Operating Condition Sports Mode and Economy mode functions as per design intention. Probable Trouble Area Wiring harness connections, Sports mode switch, Eco mode switch, EMS ecu. Healing Condition After 3 drive cycles of fault rectification. Component Details: Sports / Economy mode switch is a Normally Open - latchable rotary Switch. Whose electrical contacts will be closed when the rotary Switch is rotated to specific positions. Preliminary Checks: 1. Check whether the customer voice / view about the issue is matching with the fault effects mentioned in above Table. If yes, go ahead with next steps. If not, check for other DTC’s presence. 2. Check whether other customers report similar complaints earlier. If yes, perform the preliminary checks with respect to earlier issue closure. 3. Check whether the contacts of the Drive mode switch are stuck closed. 4. Check for damage of Drive mode switch connector / EMS ECU connector. 5. Check for damage of Drive Mode switch pins / EMS ECU pins. Trouble Shooting:
RkJQdWJsaXNoZXIy MTIwNTUz