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1997 - 2003 Ford F150 General discussion on the Ford 1997 - 2003 F150 truck.

blinking OD light but no dtc?

Old 06-06-2017, 05:44 AM
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Default blinking OD light but no dtc?

So something in the trans is not happy. OD light is doing a steady blinking, getting some slipping and converter is not locking at all. I figure by this point a DTC would be present. But my innova scanner (1-2 years old) is not finding anything.

Does the 99-03 f150 have a separate module for trans codes? Or will this require a specialty scanner?

Is there some kind of reference I can use to compare to the rate of the light blinking? Perhaps some weird OBD1 style test sequence where I can shut the door 10x and honk once to get some kind of dumb self diag mode and blink the code back?

Last edited by 4x4dave; 06-06-2017 at 05:49 AM.
Old 06-06-2017, 11:30 AM
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Some Innova's will read transmission codes, some live codes. It depends on the model number. I have a 3100 and it does not.

Last edited by akdoggie; 06-06-2017 at 12:00 PM.
Old 06-07-2017, 08:23 AM
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My ELM327 does with the Torque Pro App.


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