Software Reset Error - Mahindra Quanto Ems Diagnostic Manual

DIAGNOSTIC MANUAL
QUANTO
P1641
NORMAL OPERATION

Ignition ON

The monitored supply voltage monitored to EMS ECU is with in
the range of 8-16 V
DTC DETECTING CONDITIONS

Ignition ON

The EMS ECU supply voltage is less than 5 V and a software reset
happens
DTC REACTIONS

Engine switches off
HEALING CONDITION

Ignition Off/On
Corrective Actions
1. Check the battery voltage and ensure it is within the range (11-14V). If voltage is less, check
for charging circuit malfunction
2. Check for loose EMS ECU ground connection
3. Check for short to ground in EMS ECU power supply
4. Replace the EMS ECU
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
DTC INFORMATION

SOFTWARE RESET ERROR

PROBABLE CAUSES OF FAILURE
MAN-00201
SEP 2012/Rev 1
 Charging circuit
malfunction
 Short to ground in EMS
ECU power supply wire
 Loose EMS ECU ground
 Faulty EMS ECU
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