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Home >> Volvo >> 2004 >> S80 Base, 2.5 59, FWD >> Repair and Diagnosis >> Electrical >> Gauges >> Instrumentation - Symptom Related Diagnostic Procedures >> Checking The Key Warning Function (1999-2004) >> Trouble-shooting information

Trouble-shooting information

Condition 

No diagnostic trouble codes are displayed.

For the key warning function to work, the key needs to be in the ignition lock and the vehicle door open.

Possible Source 

Fault symptom[s]