5 Series E60 545i (N62) SAL
Step 1: Identification of engine type
Identifying the engine type is a prerequisite for bus system analysis, since: different engines generate different
fault code memory entries for the same cause of fault.
Step 2: Read fault memories of all control units
Step 3: Check fault memory entries for undervoltage
If the vehicle has suffered an undervoltage, the undervoltage is the most likely cause of the bus failure. Bus
system analysis checks whether a fault memory entry indicating undervoltage is present in at least 2 control
units.
If no undervoltage can be detected, continue with step 4.
Step 4: Check how many fault memory entries were found
If at least 1 fault memory entry is present, continue with step 5.
Step 5: Evaluation of fault memory entries and creation of a list of most probable fault causes
Bus system analysis computes the 3 most probable fault causes.
The 3 most probable fault causes are given in a list.
The most probable fault cause is at the top of the list.
Message in the BMW diagnosis system
The fault causes detected are as follows:
[1] ** ** Cause of fault PT-CAN
[2] ** Cause of fault ZGM
[3] * Cause of fault ...
[4] End test module
The more stars (maximum 5) are allocated to a component, the more reliable the
result that the cause of the fault is to be found in the area of the component.
Note: The number of stars denotes priority.
The stars in front of a cause of fault indicate how probable the cause of fault is. 5 stars denote the most
likely cause of fault.
1 star is allocated to a cause of fault that has very low probability.
Step 6: Selection of the test module
The BMW diagnosis system proposes a separate test plan for each of the 3 most probable fault causes.
Terminating resistors
The installation locations are listed below for the purposes of measuring the terminating resistor values.
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R56
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F CAN
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Vehicles with Dynamic Stability Control (DSC)
SBT Bus diagnosis All models from E60
BMW AG - TIS
23.02.2013 15:00
Issue status (12/2007) Valid only until next DVD is issued
Copyright
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