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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: 334 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.
P2032-11:Exhaust Gas Temperature Sensor Circuit Low: Oxidation catalyst upstream temperature signal Low
(circuit short to ground)
Overview:
DTC Description (User Friendly)
Exhaust Gas Temperature Sensor Circuit Low: Oxidation
catalyst upstream temperature signal low (circuit short to
ground).
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)
9. The sensed raw voltage value of exhaust gas
temperature upstream of Oxidation Catalyzer is less
than 200 volt.
10. This DTC gets logged If exhaust gas temperature
sensor 1 short circuit to ground.
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 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.