TT L4-1.8L Turbo (BEA) (2004)
1
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Enter display group, max. entered value = 255
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Enter "056" for "display group number 056" in zone -2- and confirm entry by pressing -Q- button.
Display on VAS 5051:
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Check whether engine speed (RPM) in display field -1- (actual speed) is within permitted tolerance range.
Display Group 056
NOTE:
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Engine speed in display field 1 (actual engine speed) is current engine speed.
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Engine speed in display field 2 (specified engine speed) is a theoretical engine speed calculated by ECM.
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At idle, the ECM always attempts to adapt engine speed (actual) to specified engine speed (specified).
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This means that engine speed (actual) must always approximately match engine speed (specified) at idle.
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Display fields 3 and 4 provide information, but are not relevant for checking idle speed.
Display on VAS 5051: