Brake Signal Plausibility Error.; Brake Switch - Mahindra Quanto Ems Diagnostic Manual

DIAGNOSTIC MANUAL
QUANTO
P0504

BRAKE SWITCH

The main and redundant brake signals are input to EMS ECU from the brake switch. They are mutually
and individually checked for plausibility.
NORMAL OPERATION

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 CONDITIONS

Ignition ON

EMS ECU supply voltage 8-16V

The brake switch output remains same in spite of brake
pressed or not pressed

The main and redundant switch status remains same.
DTC REACTIONS

Accelerator plausibility error detection stopped.

Under braking condition detection stopped
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

BRAKE SIGNAL PLAUSIBILITY ERROR.

DTC INFORMATION
MAN-00201
SEP 2012/Rev 1
PROBABLE CAUSES OF FAILURE

Open /short wiring
harness

Improper brake switch
adjustment

Faulty brake switch
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