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Home >> Volvo >> 2002 >> S80 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 7 (Control Modules - Design And Function - 1 Of 4) >> Audio Module (AUM) (2001-2009) >> AUM Diagnostic Functions >> Diagnostic Trouble Codes

Diagnostic Trouble Codes

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If the control unit detects an error, it stores a diagnostic trouble code. There are 36 diagnostic trouble codes in total. An error that was detected the last time the engine was running is defined as permanent. Other detected errors are defined as intermittent.