TIAGO TIGOR BSVI - SERVICE MANUAL - DTC 24-12-2021

TATA BSVI Gasoline Program – EMS ECU Bosch DTC Troubleshooting Service Manual Version: 1.2 Date: 18-12-2019 Prepared By: Sunita Mandlik Checked By: Yeshwant Jadhav Approved By: Satish Kumar Document Part No: 2921 02 xxx xxxx Page: 1181 of 1498 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. P1C07-2A: Neutral gear sensor signal error-Stuck In Range Overview: ISO Code P1C07 – 2A 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) CE Lamp ON after 1 drive cycle Fault Detection Condition Consider a senario driver is driving vehicle with clutch pressed for longer time than Neutral gear sensor signal Stuck in Range the error will appear. 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 permanent deletion 1. Scan tool Service 14 2. Stack Over Flow. 3. 40 warm up cycles. 4. ECU flashing 5. ECU power fail 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) Loose/ Damaged Connections or Intermittent fault. 2) Sensor supply line Short circuit to Battery. 3) Sensor Signal line Short circuit to Battery/ Sensor Supply/ Ground. 4) Check the continuity from sensor connector pins to the ECU pins. 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 Neutral Position Sensor. 8) Faulty ECU Trouble Shooting: - Step Checks IF YES IF NO 1. Is there wiring harness electrical continuity between ECU pin 232 & Neutral Gear Sensor signal pin no.1 Go to Step 2 Establish continuity by rectifying harness connections as per the circuit schematic 2. Sensor supply line Short circuit to Battery. Repair the harness as per the schematic Go to Step 3 3. Sensor Signal line Short circuit to Battery/ Sensor Supply/ Ground. Repair the harness as per the schematic Go to Step 4 4. Loose/ Damaged/Open Connections of Neutral Gear Sensor signal and battery. Rectify/Replace Connectors Go to step 3