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: 337 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.

P2033-15:Exhaust Gas Temperature Sensor Circuit High: Oxidation catalyst upstream temperature signal high

(circuit short to battery or open)

Overview:

DTC Description (User Friendly)

Exhaust Gas Temperature Sensor Circuit High: Oxidation

catalyst upstream temperature signal high (circuit short to

battery or open).

ECU Pin Number

A056, A055

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)

11. The sensed raw voltage value of exhaust gas

temperature upstream of Oxidation Catalyzer is

above 3200 volt (T4).

12. This DTC gets logged If exhaust gas temperature

sensor 1 short circuit to battery or open.

Normal Operating Condition

Proper wiring harness connections between Exhaust gas

temperature sensor 1 and EMS ECU.

Probable Trouble Area

Wiring harness connections between Exhaust gas

temperature sensor 1 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 / Exhaust gas temperature sensor.

4. Check for any back out of pins at EMS ECU connector / Exhaust gas temperature sensor.

5. Check for any damage of pins at EMS ECU connector / Exhaust gas temperature sensor.

Trouble Shooting: