sonett43

Any suggestions? I'm getting code 21, front left sensor fault for abs. I've checked and cleaned connections for the wheel speed sensor, I've replaced the sensor, even swapped the right for the left, I've replaced relays checks the abs ecu connectors, checked battery and ground connectors and I haven't had any change.

No dash lights , no warning chimes, just the scantool error and the fact that my obc display isn't showing any data except outside temp

robt964

Have you checked connectivity? Between the pin on the ECU plug and the final connector on the shock/hub assembly.

sonett43

What pin on the ecu plug?

sonett43

any chance the wheel sensor is working, but only reporting at speeds above maybe 80mph?

so, I found my rear spoiler light was dead, swapped it out, still nothing.

then I took a long drive with the wife, when we came home the OBC showed a avg. MPH speed of 6, and a trip distance of 23.5, avg mpg, etc...all very low compared to the 200 miles of backroads we drove.

any chance it is only working above a certain speed, maybe 80mph?

here's the trick, I don't have the motorized spoiler anymore, I have a ducktail, so if the OBC is looking for a closed circuit on the spoiler speed sensor, it won't get it.

the spoiler fault light is on all the time.

thanks