Check engine blinks about every one-half second it no longer pauses, just blinks until ignition is turned off?

1993 TOYOTA PICKUP
250,000 MILES • 2.4L • 4 CYL • 2WD • MANUAL
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MARK NABCLAW
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  • 1 POST
Using OBD1, assume properly connected and rechecked and retested more than once giving the same result, which is: Check engine blinks about every 1/2 second. No longer pauses, just blinks until ignition is turned off. What does this type of result indicate?

Thanks,
Natch
Sep 1, 2022 at 6:24 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,244 POSTS
Hi,

A constant flashing when testing for codes indicates there are none stored. That is usually an indicator of a mechanical fault and not an electrical one.

What is the truck doing?

Also, here is a link that explains how to test for codes on this truck. Confirm this is what you are doing.


https://www.2carpros.com/articles/toyota-trouble-code-definitions-and-code-gathering-method-1990-1995


Let me know.

Joe
Sep 1, 2022 at 1:41 PM
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