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
© 2014 Mahindra & Mahindra Ltd.
mHAWK IMMOBILISER
TROUBLESHOOTING CHART
IMMOBILISER TROUBLESHOOTING CHART
Sr No:
ICU
EMS
Interpretation
Probable Cause
Field Action
6
P8044
No communication from EMS
Disturbance in CAN wiring (short
to +/-, terminating resistor)
Check wiring & rectify
EMS not getting IGN
input/Defective EMS
Check wiring & rectify/Replace
EMS
7
P804A
P1832
ICU response not acceptable to ECM
Disturbance in CAN wiring (short
to +/-, terminating resistor)
Check wiring & rectify
P8045
ECM & ICU out of sync
Perform ECM - ICU learning
8
P8048
P1832
Signal from EMS ECU is not acceptable
to ICU.
Disturbance in CAN wiring (short
to +/-, terminating resistor)
Check wiring & rectify
P8045
ECM & ICU out of sync
Perform ECM - ICU learning
9
P8049
P1832
ICU didn’t receive acknowledgement
from ECM.
Disturbance in CAN wiring (short
to +/-, terminating resistor)
Check wiring & rectify
P8045
Erase the DTC and check if it is
coming again
10
P1832
No communication from ICU.
Disturbance in CAN wiring (short
to +/-, terminating resistor) or
power/ground lines.
Check wiring & rectify
P183F
Defective ICU
Replace ICU &Perform ECM -
ICU/ICU - Key learning
DIAGNOSTIC MANUAL
SCORPIO
IMMOBILISER
MAN-00281
DEC 2014/Rev 1
88