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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
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© 2014 Mahindra & Mahindra Ltd.
mHAWK IMMOBILISER
TROUBLESHOOTING CHART
IMMOBILISER TROUBLESHOOTING CHART
Sr
No:
ICU EMS Interpretation Probable Cause Field Action
1
P8040 P1832
No signal received from Key
Defective Key
Check with both keys. If starting with
second key, replace the first one and
do learning
P183F Defective Antenna
If not starting with both keys the
Antenna can be defective, replace
ICU and do the learning
2
P8041 P1832
Signal received from the key cannot
be read by ICU.
Defective Key
Check with both keys. If starting with
second key, replace the first one and
do learning
P183F Defective Antenna
If not starting with both keys the
Antenna can be defective, replace
ICU and do the learning
3
P8042 P1832
Signal received can be read, but not
learnt for the particular vehicle.
Wrong Key Used
Use the correct key and do learning
if required
P183F
4
P8043 P1832
Blank ICU. No key is learned to the
ICU
New ICU from stock Perform key learning
P183F
5
P8044 P1832 Signal from EMS not received by ICU
Disturbance in CAN wiring
(short to +/-, terminating
resistor)
Check wiring & rectify
P183F EMS has not sent the signal
Ignition turned on before EMS
After run got completed.
IGN OFF for 2 min and try again.
EMS is not Flashed properly
Replace/Reflash EMS &Perform
ECM - ICU/ICU - Key learning
Note: 183B(Locked State) can come in all the above conditions after 30 consecutive
occurrences.
DIAGNOSTIC MANUAL
SCORPIO IMMOBILISER
MAN-00281
DEC 2014/Rev 1
87