[DatAsstro]

As the title says ‘01 Astro.
AWD not engaging, “Service AWD” light not on, ATC fuse keeps blowing.
It does have a New encoder Motor.

 

[Rod's Trucks]

It could be a wiring problem in the harness down under the body,or shorted at the plug. A close inspection could uncover a problem area.
Try unplugging the encoder motor and installing a new fuse. If the new fuse does not blow, it could be an encoder motor issue, or damaged wires at the encoder socket. Was the replaced encoder motor a rebuilt unit or new?

Rod J
Issaquah, WA

 

[DatAsstro]

It was a reman cardone, the wire connections to the plug looked solid and not corroded. Same with the plug to encoder motor. I did unplug and was able to not blow the fuse. Wondering if I got a bad remanufactured unit.

 

[Rod's Trucks]

My factory manuals are for 1998 (Borg-Warner system) , so I do not have an encoder motor.
Somebody else may offer information on the actual testing procedure for the encoder motor.
Rod J

 

[AK 02 03]

It could be a wiring problem in the harness down under the body,or shorted at the plug. A close inspection could uncover a problem area.
Try unplugging the encoder motor and installing a new fuse. If the new fuse does not blow, it could be an encoder motor issue, or damaged wires at the encoder socket. Was the replaced encoder motor a rebuilt unit or new?

Rod J
Issaquah, WA

Interesting thought, new encoder, new shaft speed sensors, still blowing fuses. I'm giving this a try. Thanks