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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 personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will
amount to unauthorized use and shall be liable for penalty/prosecution© 2021 Mahindra & Mahindra Ltd.
13.22 U1117–00 — NO ICU RESPONSE/ICU NODE ABSENT
13.22.1 UICU NODE ABSENT
UICU node absent denotes, UICU nodes is not connected in CAN. During security
authentication, UICU is not responding to the other ECU’s in CAN
DTC Description EMS ECU UICU DTC Description
Immobilizer
authentication failed
B2FFF–00
- -
Immobilizer no
response
B2FF9–00
- -
Immobilizer node
absent
U1117–00
- -
DTC INFORMATION
PROBABLE CAUSES OF
FAILURE
NORMAL OPERATION
• Ignition ON
• After successful security authentication, vehicle starts
normally
DTC DETECTING CONDITIONS
• This combination is registered when there is no
signal received from the UICU, during authentication
DTC REACTIONS
• Immobilizer check lamp: ON
• Engine check lamp: BLINKS
• Starter will engage
HEALING CONDITION
• Ignition OFF/ON
• Fault not present
• UICU is not connected
• UICU is not getting powered
• Defective UICU
• Disturbance in CAN circuit or
wiring harness intermittent
connectivity issue
Diagnostic Manual
XUV700 (Diesel)
UICU
MAN-01065
OCT - 2021/Rev 1
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