Astra
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Trouble Code, Read Off with Diagnostic Switch KM-640
The excitation lead of the Motronic system is short circuited with ground in the diagnostic plug with KM-640. By this means the blink code output is triggered when the ignition is switched on. Any trouble codes present are displayed via the engine telltale.
Diagnostic Switch, Connect
Trouble code read-out with Diagnostic Switch KM-640. In addition the switch is turned to position "B" and attached to the diagnostic plug (ALDL plug) in the engine compartment. Switch on ignition. Read off fault using blink code data.
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