DIAGNOSTIC MANUAL
MAN-00152
EMS
OCT 2011/Rev 1
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.
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P0504 - Brake Signal plausibility error.
BRAKE SIGNAL
The main and redundant brake signals are received from the brake switch to EMS ECU . They are
mutually and individually checked for plausibility.
COMPONENT LOCATION
NORMAL
OPERATION
During ignition ON, the brake switch outputs a voltage which corresponds to
the brake position and is within the range.
Main brake signal is ON and redundant signal is OFF and vice versa
DTC DETECTING
CONDITION
The brake switch output remains same in spite of brake pressed or not pressed
The main and redundant switch status remains same
PROBABLE
CAUSES
Open /short wiring harness
Improper brake switch adjustment
Faulty brake switch
LAMP STATUS
No lamp indication
DTC REACTION
Accelerator plausibility error detection stopped.
Under braking condition detection stopped
ABS/ESP malfunctioning
HEALING
CONDITION
Ignition OFF/ON