when I perform the self-diagnosis test on my engine, the light comes on for about 4 sec. this happens even if i do not start the engine. Then the light stays off. According to the manual the light should blink on every 5 seconds. I think i am doing the procedure correct because it did indicate a bad shift position switch with a code of 28. I jumped the switch out to clear that code and redid the procedure now I am getting the one 4 sec. light on then off and stays off.
