Passat L4-1984cc 2.0L DOHC (9A) (1990)
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-- value must drop uniformly and without interruption
If YES
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press -> button
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press 0 and 6 buttons to enter 06 function "end output"
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press 0 button to enter input
If channel 1 display does not drop uniformly (without interruption)
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replace coolant temperature sensor (G 62) and/or CIS-E Motronic control unit (J 204)
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read and then erase Fault memory
