56
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.
13.8 B2F4C–00 — CHECKSUM MISMATCH
13.8.1 EMS ECU AND IMMO ID
During every ignition cycle, EMS ECU ID's and ICU ID's are checked for mismatch
DTC Description EMS ECU UICU DTC Description
Immobilizer
Authentication failed
B2FFF—00 B2F4C-00 Checksum
mismatch
Immobilizer No
Response
B2FF9—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 the signal from
the EMS ECU is not has expected by the UICU
DTC REACTIONS
• Immobilizer check lamp: OFF
• Engine check lamp: Blinks
• Vehicle will start
HEALING CONDITION
• Ignition OFF/ON
• Fault not present
• Disturbance in CAN circuit
• EMS ECU and UICU is out of
sync
• UICU or EMS ECU Software
corrupted
13.8.2 DIAGNOSTIC PROCEDURE
This DTC may found in UICU in healed state most of the time,
please look for any other DTC present in UICU. Follow the diagnostic procedure for
those DTC’s first and then proceed to below diagnostic procedure.
Diagnostic Manual
XUV700 (Diesel)
UICU
MAN-01065
OCT - 2021/Rev 1
To Next Page
Loading...
