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Home >> Volkswagen >> 1999 >> Golf (1J1) L4-1.9L DSL Turbo (ALH) >> Repair and Diagnosis >> A L L Diagnostic Trouble Codes ( DTC ) >> Testing and Inspection >> P Code Charts >> P0642

P0642

SAE VAG Description
P0642 17026 Sensor Reference Voltage "A" Circuit Low

Check Battery
Check Battery -A-

Check Generator (GEN)
Check Generator (GEN) -C-

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