Continious Torque Monitoring - Mahindra Quanto Ems Diagnostic Manual

DIAGNOSTIC MANUAL
QUANTO

CONTINIOUS TORQUE MONITORING

DTC Description
NTP error in ADC
P1900 monitoring
ECU Monitoring: ADC
P163B
test error
ECU Monitoring:
P163C Voltage ratio error in
ADC
ECU Monitoring:
P1621 Query response
communication error
ECU Monitoring: SPI
P1622
communication error
ECU Monitoring: ROM
P0605
memory error
ECU Monitoring: CPU
P1623
error
ECU Monitoring:
Response time error in
P1625
ECU
ECU Monitoring: Shut
off path test SPI
P1626
communication error
Lamp Status - Engine Check lamp Continiously ON
DTC reaction - Engine will not start
Corrective Action -
1. Using diagnostic tester clear the DTC.
2. Turn ignition OFF/ON
3. Check for the DTC . If the DTC still exists , repeat the steps 1 and 2 for 3 times
4. If DTC still exists replace the EMS ECU with a new one
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
Monitored Component
The ADC ( Analog to Digital
Controller ) of the micro
controller is monitored
Test voltage of ADC
monitoring
Ratiometry correction
monitored
Function controller
monitored
SPI communication
monitored
ROM memory monitored
MM response to CPU is
monitored
MM response time is
monitored
SPI communication
monitored
MAN-00201
SEP 2012/Rev 1
Malfunction
Error in plausibility of the
test voltage
Error in plausibility of
ratiometry correction
Error in plausibility of
function controller and
monitoring module
Interrupted SPI
communication
Multiple error in complete
ROM test during post drive
Too less bytes received by
MM from CPU as response
Error in MM response time
Error detected in SPI
communication
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