88B-9
AFTER REPAIR
Carry out a new test using the diagnostic tool.
Clear the stored faults on all the computers connected to the network.
Deal with any other faults.
V1
MR-453-X79-88B000$040.mif
MULTIPLEXING
Fault finding – Interpretation of faults
88B
FAULTY COMPUTER (CONTINUED 1)
Measure the resistance of component 225 between the following connections:
• Connection code 133B
• Connection code 133C
What is the value obtained?
0 ΩΩ
ΩΩ
The two lines are in short circuit (see Introduction - Repair advice).
60 ΩΩ
ΩΩ
±
10
ΩΩ
ΩΩ
Check that each of the computers present on the network is correctly supplied.
For the ABS:
Check for earth on connections MAH and for the supply on connections AP5, BP14,
and BP88 of component 118.
For the ABS / ESP:
Check for earth on connections MAH and for the supply on connections AP5, BP14,
and BP88 of component 1094.
For the torque distributor - ETC:
Check for earth on connections NC and for the supply on connections AP4, BP1U,
LPD, and LPG of component 2017.
For the injections:
Check for earth on connections NH and for the supply on connections AP29 or AP29/
BP17 or BP38/3FB/3FBA of component 120.
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