DIAGNOSTIC MANUAL MAN-00201
QUANTO
EMS
SEP 2012/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
© 2012 Mahindra & Mahindra Ltd.
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P1632
ECU MONITORING: ZFC NON PLAUSIBILITY ERROR
DTC INFORMATION
PROBABLE CAUSES OF FAILURE
NORMAL OPERATION
Ignition ON
The maximum plausible energising time of the ZFC results,
depending on the rail pressure is compared with a
predetermined curve and is within the range
The minimum energizing time is also compared with a
predetermined curve and is within the range
DTC DETECTING CONDITIONS
Ignition ON
EMS ECU supply voltage 8-16V
The actual value is out of range of value given in the curves
DTC REACTIONS
Engine Check lamp continuosly ON
HEALING CONDITION
Ignition Off/On
Injector worn/ stuck
Faulty EMS ECU
Corrective Action –
1. Check for injector stuck or worn ( thru fuel leak off test).If the injectors found leaky ,replace with new
one
2. Using diagnostic tester clear the DTC.
3. Turn ignition OFF/ON
4. Check for the DTC . If the DTC still exists , repeat the steps 2 and 3 for 3 times
5. If DTC still exists replace the EMS ECU with a new one
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