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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CONTINIOUS TORQUE MONITORING
DTC
Description
Monitored Component
Malfunction
P1900
NTP error in ADC
monitoring
The ADC ( Analog to Digital
Controller ) of the micro
controller is monitored
P163B
ECU Monitoring: ADC
test error
Test voltage of ADC
monitoring
Error in plausibility of the
test voltage
P163C
ECU Monitoring:
Voltage ratio error in
ADC
Ratiometry correction
monitored
Error in plausibility of
ratiometry correction
P1621
ECU Monitoring:
Query response
communication error
Function controller
monitored
Error in plausibility of
function controller and
monitoring module
P1622
ECU Monitoring: SPI
communication error
SPI communication
monitored
Interrupted SPI
communication
P0605
ECU Monitoring: ROM
memory error
ROM memory monitored
Multiple error in complete
ROM test during post drive
P1623
ECU Monitoring: CPU
error
MM response to CPU is
monitored
Too less bytes received by
MM from CPU as response
P1625
ECU Monitoring:
Response time error in
ECU
MM response time is
monitored
Error in MM response time
P1626
ECU Monitoring: Shut
off path test SPI
communication error
SPI communication
monitored
Error detected in SPI
communication
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
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