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OSPREY- Application
DTC Troubleshooting Data
Version: 4.0
Date: 10-02-2017
Prepared by: Mithipati Prasad
Checked by: G S Raju / Senthilnathan S
Page: 561 of 654
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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.
P3014: Sport and ECO mode inputs simultaneously available: Drive Mode Switch Electrical failure
Overview:
Description as per ISO Standard
Sport and ECO Switch inputs simultaneously available: Drive Mode
Switch Electrical failure
Customer Symptom
Engine will run in default normal / City mode
Fault Effects (On Vehicle)
Engine will run in default normal / City mode
Lamp Status (If Any)
CE lamp ON
Fault Detection Condition
This fault gets logged when the Sports mode switch and economy mode
switch inputs are available to EMS ECU simultaneously.
Normal Operating Condition
Sports Mode and Economy mode functions as per design intention.
Probable Trouble Area
Wiring harness connections, Sports mode switch, Eco mode switch, EMS
ecu.
Healing Condition
After 3 drive cycles of fault rectification.
Component Details:
Sports / Economy mode switch is a Normally Open - latchable rotary Switch. Whose electrical contacts will be closed
when the rotary Switch is rotated to specific positions (2 No.s)
Preliminary Checks:
x
Check whether the customer voice / view about the issue is matching with the fault effects mentioned above. If yes,
go ahead with next steps. If not, check for other DTC’s presence.
x
Check whether similar complaints are earlier reported. If yes, perform the preliminary checks with respect to earlier
issue closure.
x
Check whether the contacts of the Drive mode switch are stuck closed.
x
Check for damage of Drive mode switch connector / EMS ECU connector.
x
Check for damage of Drive Mode switch pins / EMS ECU pins.
.