TATA BSVI Gasoline_Bifuel Program – EMS ECU Bosch DTC Troubleshooting Service Manual Version: 2.6 Date: 5-10-2023 Prepared By: Pradip Shimpi Checked By: Yeshwant Jadhav Approved By: Sanjeev M. Document Part No: 2921 02 xxx xxxx Page: 1142 of 1720 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. P1C06-15: Neutral Gear Sensor Voltage High-Circuit Short To Battery or Open Overview: ISO Code P1C06 -15 Customer Symptom 1. ESS Autostop/ Autostart Function will not work. 2. IAC Control will not work in Intermittent Mode. Fault Effects (On Vehicle) 1. ESS Autostop/ Autostart Function will not work. 2. IAC Control will not work in Intermittent Mode. Lamp Status (If Any) Sil Fault Detection Condition Neutral gear sensor pin no.232 short circuited to Battery or Open Normal Operating Condition Neutral Gear Sensor detect the Neutral Gear position Probable Trouble Area Neutral Gear Sensor, Wiring Harness Healing Condition After 1 Drive cycles and ignition ON Fault is heald Fault permanent deletion 1. Scan tool Service 14 2. Stack Over Flow. 3. 40 warm up cycles. 4. ECU flashing 5. ECU power fail Note: There is no linkage of Neutral gear sensor on Current Gear Display function. So, do not replace Neutral gear sensor in case of “N” display. Component Details: This is mainly required for Engine start Stop functionality in Manual Transmission. Sensor is used to detect Neutral position and non-neutral position. Preliminary Checks: 1) Check the continuity from sensor connector pins to the ECU pins. 2) Loose/ Damaged Connections or Intermittent fault. 3) Sensor supply line Short circuit to Battery. 4) Sensor Signal line Short circuit to Battery/ Sensor Supply/ Ground. 5)Check for back out of pins at both Sensor connector and ECU connector. 6) Check for damage of pins at both sensor connector and ECU connector. 7) Faulty Engine Netutral Position Sensor. 8) Faulty ECU
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