Mahindra XUV 500 Diagnostic Manual page 229

DIAGNOSTIC MANUAL
RAIL PRESSURE SENSOR
A loose contact in the rail pressure sensor wiring can lead to incorrect measuring of the rail pressure. If
this does occur, it is typical for the measure pressure to increase considerably for a brief time (jumps in
the magnitude of greater than 100 bar in a 10 ms time). This kind of extreme pressure increases does not
occur in the system when the rail pressure sensor is functioning properly. To determine a malfunction
based on this appearance, gradient monitoring of the rail pressure is performed Rail pressure gradient
monitoring. This is set if the rail pressure gradient pressure fluctuations exceed a certain level
COMPONENT LOCATION
NORMAL

OPERATION
DTC DETECTING

CONDITION
PROBABLE

CAUSES
LAMP STATUS

DTC REACTION


HEALING
CONDITION
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© 2011 Mahindra & Mahindra Ltd.
EMS
P169F - Rail pressure raw value is intermittent
EMS ECU monitors the rail pressure for sudden increase over a small time and
is within the range
Extreme pressure increase noticed and fluctuation exceed a certain level
Loose connections in rail pressure circuit
No lamp indication
Nil
Ignition OFF/ON
MAN-00152
OCT 2011/Rev 1
228