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Weird starting issue, ignition switch? 200 1993

posted by  Grey245 on  Sun May 23 10:50 CST 2021
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You read the diagram correctly.
Referring to page 29 of the document, you can see socket "B" gets energized the moment the key is turned to III.
Volvo calls it "service socket for starting engine", so its main function would have been to enable mechanics to crank the engine from the engine bay. But you can use it to conveniently measure the voltage from the ignition switch while starting.

What's that buzzing sound like?
The fuel pumps should only be heard for a second or so when switching on the ignition and then stop, and it's more like whirring than buzzing. They shouldn't start running again until the engine cranks.





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New Weird starting issue, ignition switch? [200][1993]
posted by  Epic2112  on Sat May 22 22:04 CST 2021 >


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