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W140 LED self diagnostic connector does not blink when pressed
I have a 1994 W140, S600 with the self diagnostic connector. With the ignition on and following the instructions for self diagnosis, my LED stays lit when the button is pressed but does not blink at all as it is designed to.
If I hold the button down for at least a minute before removing the key from the igniton, it will turn the check engine light off. Any ideas? |
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