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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: 966 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.
schematic.
3
Check whether the EMS pin A66 or A64 is short-circuited to
Battery / Ground.
Rectify the wiring
harness connections
as per the circuit
schematic.
Go to next step
4
Are there any pins damaged at EMS ECU Connector
Replace the
connector or wiring
harness
Go to Next Step
5
Are there any pins backed out from the EMS ECU
Connector
Rectify/Replace
Connectors
Go to Next Step
6
Fault Persists.
Call Hotline
Repeat the above
steps for re-
confirmation
DTC’s confirmation:
After rectification, Test Drive the vehicle for 2 KM and ensure that no DTC’s are logged in ECM.
Incase the cylinder 1 injector or cylinder 4 injector replacement is needed, then perform below actions:
1. Perform IMA classification / Injector learning
2. “Reset Lambda sensor - 4.2.2 ‘Exchange of Injectors, Rail Pressure Sensor and MAF Sensor’ (LSU1 $ 02 05 XX)
– Sub-function 02“.
3. “DPF injector reset (DPF5) – ‘Set EEPROM values for PFFlt_MassCalc Exchange of an emission relevant engine
component’”
Incase the EMS ECU replacement is needed, Check whether the old ECM is communicating or not. If Old EMS is
communicating then perform actions specified in Sec. 4.1 of Component Replacement procedure document. If Old EMS is
not communicating then perform actions specified in Sec. 4.2 of Component Replacement procedure document.
Circuit Schematic:
Component Location & Image:-
To be added
Injector
Connector
ECM
A66
1
HSD
2
LSD
A87