Diagnostic Manual (MBFM) MAN-00068-72
October 2009/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 Authorised Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for
penalty/prosecution© 2009 Mahindra & Mahindra Ltd.
ABS Unit not responding.
Code Label
U 1113 ABS unit not responding (K-line)
U 1114 Negative response received from ABS (K-line)
Description
The MBFM communicates with the ABS over the K Line and also gets the PWM input
(about the ABS and park lamp status)
The communication happens when:
1. Ignition state changes from CRANK/OFF to RUN
or,
2. Detection of change in state of DMD input while Ignition state is RUN/CRANK.
Functional block diagram
It will attempt to communicate for a defined no of cycles. After that it will again attempt
when the next time the communication conditions are met.
Since the K line is also used for Diagnostic communication for ECU, ABS, and MBFM. Hence
if the K line is being used to for diagnostic communication, that time it will not
communicate with the ABS unit.
U 1113
U 1114
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