Vehicle Speed Sensor Plausibility Error; Vehicle Speed Sensor (Vss) - Mahindra Quanto Ems Diagnostic Manual

DIAGNOSTIC MANUAL
QUANTO
P0501

VEHICLE SPEED SENSOR (VSS)

Vehicle Speed Sensor(VSS) is hall sensor type and senses the rotating speed of the transmission output
shaft . Comparing engine speed with vehicle speed calculated based on vehicle speed sensor signal, ECU
recognizes engaged gear. Based on the information about engaged gear, ECU performs optimum fuel
injection quantity correction
NORMAL OPERATION

Ignition ON

When the vehicle is driven , VSS outputs a pulse signal to the
EMS ECU and is within the range
DTC DETECTING CONDITIONS

Ignition ON

EMS ECU supply voltage 8-16V

Clutch is engaged and gear not in neutral but the VSS sensor
output remains same for more than calibrated time
DTC REACTIONS

All the load dependent functions e.g. FBC, ZFC are switched off

Vehicle may feel jerky while driving
HEALING CONDITION

Ignition Off/On
The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the
manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document,
are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd.,
will amount to unauthorized use and shall be liable for penalty/prosecution© 2012 Mahindra & Mahindra Ltd.
EMS

VEHICLE SPEED SENSOR PLAUSIBILITY ERROR

DTC INFORMATION
MAN-00201
SEP 2012/Rev 1
PROBABLE CAUSES OF FAILURE

Short /open in VSS circuit

Faulty VSS
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