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Home >> Audi >> 2010 >> S4 Automatic DCT >> Repair and Diagnosis >> External Pages >> Different car >> Section 1082 (Steering Wheel And Column Electrical Components) >> Diagnosis And Testing >> Steering Wheel and Column Electrical Components >> Pinpoint Tests >> Pinpoint Test O : U0140:00 >> Notes

Pinpoint Test O : U0140:00: Notes

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Normal Operation and Fault Conditions 

The HSWM communicates with the BCM over the CAN. If the HSWM does not receive messages from the BCM, no noticeable symptom may be present.

HSWM DTC Fault Trigger Conditions 

DTC Description Fault Trigger Conditions
U0140:00 Lost Communication With Body Control Module: No Sub Type Information Sets when the HSWM does not receive an expected message from the BCM for more than 5 seconds.

Possible Causes 

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