Egr Modulator - Mahindra Quanto Ems Diagnostic Manual

DIAGNOSTIC MANUAL
QUANTO
P0406

EGR MODULATOR

EGR modulator controls the EGR valve . EMS ECU converts the air control output into duty cycle and
outputs a PWM signal to EGR modulator
NORMAL OPERATION

Ignition ON

No error detected in EGR control circuit during self check

Engine runs as per the EGR mapping
DTC DETECTING CONDITIONS

Ignition ON

EMS ECU supply voltage 8-16V

Short to battery in EGR modulator control circuit
DTC REACTIONS

OBD check lamp continuously ON.

EGR Switches OFF.
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
EGR VALVE SHORT TO BATTERY ERROR
DTC INFORMATION
MAN-00201
SEP 2012/Rev 1
PROBABLE CAUSES OF FAILURE

Short to battery in EGR
modulator control wire

Faulty EGR modulator
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