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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: 160 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.
Step Checks
IF YES
IF NO
1.
Check whether the Rotary Drive Mode switch contacts are
stuck in closed condition.
Rectify/Replace the
Switch.
Go to Step 2.
2.
Fault to be logged for Drive Mode Function when:Drive
Mode Verification Failure (EMS verification failed or ESP
Verification Failed).
Establish continuity
by rectifying
harness
connections as per
the circuit
schematic.
Go to Step 3.
3.
Check whether the Drive Mode rotary switch is physically
Damaged.
Rectify/Replace the
Switch.
Go to step 4.
4.
Check whether the EMS ecu pin k34 is short circuited to
Ground / BATT.
Rectify the wiring
harness connections
as per the
schematic.
Go to Step 5.
5.
If fault still persists.
Replace economy
mode switch. IF fault
still persists then
Call hot line
Confirm the above
procedure for fault
Rectification.
DTC’s confirmation
(checks before handing over vehicle to customer)
:
1. Check the errors at Ignition ON, engine running @ Idle & Fly-up with different vehicle speeds also.
2. If error present, then rectify the errors.
3. Confirm that there is no error logged in EMS before handing over vehicle to customer.