5 Series E60 525d (M57TU) SAL
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E81, E87, E90, E91, E92, E93
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F CAN
Different terminating resistors are used depending on the motorisation:
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Vehicles with engine N4... (basic variant and High equipment)
1 resistor is in the SZL control unit (SZL: steering column switch cluster)
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Vehicles with engine M47, M57, N5... (basic variant and High equipment)
1 resistor is in the DSC control unit (DSC: Dynamic Stability Control)
1 resistor is in the SZL control unit (SZL: steering column switch cluster)
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PT-CAN
Different terminating resistors are used depending on the motorisation:
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Vehicles with engine N4... (basic variant and High equipment)
1 resistor is in the DSC control unit (DSC: Dynamic Stability Control)
1 resistor is in the JBE control unit (JBE: junction box electronics)
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Vehicles with engine M47, M57, N5... (basic variant and High equipment)
1 resistor is in the DSC control unit (DSC: Dynamic Stability Control)
1 resistor is in the EKP control unit (EKP: controlled fuel pump)
MOST system analysis
The MOST bus has a ring structure. This means that a fault in one control unit can have an effect on the entire
system. The cause of a system fault (= communication fault) in the MOST network is not readily apparent.
The "MOST system analysis" test module (BMW diagnosis system from DIS CD 36) was developed in order to
analyse faults in the communication of MOST control units.
The MOST system analysis has been improved in DIS-CD 38.
Note: Path details for the "MOST system analysis" test module
The test module is called up in the DIS (Diagnosis and Information System) as follows:
"Function selection" button -> Complete vehicle -> Body -> Bus functions -> MOST functions -> MOST
system analysis
In order to determine the cause of a system fault in the MOST network, the following prerequisites have been
established:
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If a communication fault occurs in MOST control units, then this communication fault is not shown in the fault
memory of the control unit concerned. This also means that no "x" appears before this control unit in the short
test.
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In addition to the list of "really" fitted control units in the short test, a "virtual" control unit appears called "MOST
system analysis".
In this case, "virtual" means that this is not a real control unit, but a wild card for all MOST control units.
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The short test for the "MOST system analysis" "virtual" control unit reads the communication faults of all the
MOST control units.
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An "x" in front of this "MOST system analysis" "virtual" control unit indicates that the short test has analysed one
of the following faults:
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No communication with the following control units:
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R56
CCC: Car Communication Computer
SBT Bus diagnosis All models from E60
BMW AG - TIS
12.02.2013 15:59
Issue status (12/2007) Valid only until next DVD is issued
Copyright
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