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: 554 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.

P0501-86: Vehicle Speed Sensor "A" Range/Performance : Vehicle speed received from CAN is wrong.

Overview:

DTC Description (User Friendly)

Vehicle Speed Sensor "A" Range/Performance: Vehicle

speed received from CAN is wrong.

ECU Pin Number

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)

The vehicle speed delivered by CAN equals to MAXSINT16.

Normal Operating Condition

If vehicle speed received through CAN is correct.

Probable Trouble Area

Wiring harness connections between vehicle speed sensor

and EMS ECU.

Healing Condition

Rectify the error Clear through diagnostic tool.

Ignition OFF & ON

Component Details:

Vehicle speed sensor is used for reading the speed of a vehicle's

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 / Vehicle speed sensor.

4. Check for any back out of pins at EMS ECU connector / Vehicle speed sensor.

5. Check for any damage of pins at EMS ECU connector / Vehicle speed sensor.