HARRIER BOOK 2

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: 331 of 1052

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.

P2471-15: Exhaust Gas Temperature Sensor Circuit High: Outlet Diesel Particulate Filter exhaust gas temperature

sensor (circuit short to battery or open)

Overview:

DTC Description (User Friendly)

Exhaust Gas Temperature Sensor Circuit High: Outlet Diesel

Particulate Filter exhaust gas temperature sensor (circuit

short to battery or open).

ECU Pin Number

K047, K050

Customer Symptom

MIL ON, CEL OFF

Fault Effects (On Vehicle)

Lamp Status (If Any)

MIL ON. MIL Turns Off as and when fault condition is not

present / healed.

Fault Detection Condition (Root cause)

7. The sensed raw voltage value of the temperature

sensor downstream from the particle filter is greater

than 3200 volt (T6).

8. This DTC gets logged ifoutlet DPF temperature

sensor short circuit to battery or open.

Normal Operating Condition

Outlet Diesel Particulate Filter exhaust gas temperature

sensor and EMS ECU.

Probable Trouble Area

Wiring harness connections between outlet DPF temperature

sensor and EMS ECU.

Healing Condition

Rectify the error Clear through diagnostic tool.Ignition OFF &

ON.

Component Details:

Exhaust gas temperature sensor is used to measure temperature inside exhaust system.

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 for Damage in EMS ECU connector / Outlet Diesel Particulate Filter exhaust gas temperature sensor.

4. Check for any back out of pins at EMS ECU connector / Outlet Diesel Particulate Filter exhaust gas temperature

sensor.

5. Check for any damage of pins at EMS ECU connector / Outlet Diesel Particulate Filter exhaust gas temperature

sensor.

Trouble Shooting: