Peeples Posted March 21, 2007 Share Posted March 21, 2007 My speedometer quit & TCU is flashing code #4. I replaced the speed sensor & still nothing has changed. I have reset the computer & checked for any bare wires. What else could be wrong. If anyone can be of any help please let me know. Thanks Link to comment Share on other sites More sharing options...
zay386 Posted March 22, 2007 Share Posted March 22, 2007 My speedometer quit & TCU is flashing code #4. I replaced the speed sensor & still nothing has changed. I have reset the computer & checked for any bare wires. What else could be wrong. If anyone can be of any help please let me know. Thanks The best i could say is make sure u have the speed sensor connector all the way in because i had that problem when i changed my transmission and i thought that the sensor was bad but the connector was not alll the way in. Listen for a click sound to verify that it's all the way in. Link to comment Share on other sites More sharing options...
Peeples Posted March 22, 2007 Author Share Posted March 22, 2007 The best i could say is make sure u have the speed sensor connector all the way in because i had that problem when i changed my transmission and i thought that the sensor was bad but the connector was not alll the way in. Listen for a click sound to verify that it's all the way in. I have everything plugged in correctly & have went back and double checked it all. I don't know what else to do. Do you have any clue? Is there a fuse that controls it. I know that the radio fuse acts as a backup power for the tcu. I checked it & it is good. Is there anything else?? Thanks for all the help Link to comment Share on other sites More sharing options...
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