Fault Tracing [A] ***START HERE***

Fault Tracing System [A]

AA. Summary

[AA1]

See - Description and Operation Description and Operation

If unsure about the ABS system or its components

Then continue with: AA2

[AA2]

See - General Vehicle Damage Warnings

Ignition and high tension components
Battery
Cleanliness
Control modules
Mechanical outline
Abbreviations
Symbols

Then continue with: AA3

[AA3]

Fault-tracing with Volvo System Tester






Refer to Volvo System Tester Fault Tracing ABS Diagnostic Trouble Codes (DTCs)
Read-off and note DTCs and any notification of status and frozen values
If communication with Volvo System Tester is not made, refer to [III], Check the communication to the control module.

Are one or more DTCs posted?

Yes: AA4
No: AA6

[AA4]

DTC table






Take appropriate action for the respective DTCs and then erase the DTCs.
Ignition off
Test drive the vehicle SA. Test driving.

Are one or more DTCs re-activated ?

Yes: AA4
No: AA5

[AA5]

No DTCs activated
Do symptoms persist?

Yes: AA6
No: AA8

[AA6]

Symptom table






Find the matching symptoms and deal with them as per the instructions the instructions SB. Symptom table.
Test drive the vehicle [SA]. Test driving.

Do the symptoms persist?

Yes: AA7
No: AAB

[AA7]

Test box and parameter tables

Connect the test box and check all the connections as per DSA signal description.

Then continue with: AA8

[AA8]

Re-check






Check that no DTCs have been posted while fault-tracing in other systems
Delete any DTCs before the vehicle is handed back to the customer

Then continue with: Fault corrected