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OBD1 Help

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  #1  
Old 06-06-2019, 10:13 PM
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Default OBD1 Help
So I bought an OBD2 scanner, and an adapter to plug into my '92 Blazer. However when i plugged everything in, the scanner didnt power on. Is there a common issue here??
 
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Old 06-07-2019, 01:14 PM
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Could be a blown fuse. Usually, the dome light is on the same one. Maybe the 12V outlet/lighter, too.
 
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Old 06-07-2019, 01:30 PM
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I bought a fuse kit and just started replacing all the bad fuses, so I wouldn't think it's that. Although my radio suddenly doesn't work either
 
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Old 06-07-2019, 01:33 PM
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If you have a 12-pin connector, you'll have to supply external power. If it's an 18-pin, use a voltmeter to check the B+ terminal for voltage.

Wiring diagram
 
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Old 06-07-2019, 01:47 PM
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So, I'm getting power to the connector, around 11v, but it's not turning on the scanner
 
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Old 06-07-2019, 11:25 PM
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The OBD2 systems supply power to the reader - OBD1 does not
Most code readers need a external power supply as in battery's for OBD1
Mine reader has too have 3 AA battery's added for OBD1
 
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Old 06-07-2019, 11:49 PM
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****. I don't think my reader has the option for batteries

Edit: I do not have a way to add batteries 😫
 
Last edited by Ironman1257; 06-07-2019 at 11:55 PM.
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Old 06-08-2019, 12:00 AM
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Well darn - with my reader the battery's are added in the pig tail for OBD1.
 
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Old 06-08-2019, 12:20 AM
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Well. Atleast I've got a reader now and I can take the adapter to autozone
 
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Old 06-08-2019, 10:55 AM
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Both of my ancient OBD1 readers have a separate cord that plugs into the cigarette lighter.
 
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