Possible causes of fault | Rectifying fault |
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| Only for gearboxes “01M, 01P” from January 1995; | Connectors for vehicle speed sender -G68- and gearbox speed sender -G38- interchanged. In this case, when fault memory is read, “Sender for gearbox speed -G38-/implausible signal” will be displayed. | –
| Perform basic setting with engine switched off → Chapter. |
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| Interchange connectors. |
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No signal from gearbox oil temperature sender -G93- or Sender defective | –
| Check gearbox oil temperature sender -G93- and renew if necessary. |
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Throttle valve potentiometer signal not detected by automatic gearbox control unit -J217-. | –
| Check signal from throttle valve potentiometer. |
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| To do this, connect a Volkswagen tester → Chapter. |
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| Perform → self-diagnosis of engine control unit. |
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Connection to gearbox damaged or loose (connection: conductor strip input wire connector in vehicle wiring harness)t
| Contacts dirty or corroded |
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| Connector contact in connector housing damaged (not engaged) |
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Short circuit between valve cables and conductor strip or on cable guide rail | –
| Renew valve wiring and conductor strip → Chapter. |
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Wrong control unit installed or control unit defective | –
| Read out control unit identification. |
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| To do this, connect a Volkswagen tester → Chapter. |
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Manual selector valve or spool valves in valve body defective | |