What does c0379 do on the axle control circuit?
What does c0379 do on the axle control circuit?
C0379 is all about the axle actuator control circuit. Should be 12V on the brown wire at the actuator, and the TCCM should see 12V coming through the actuator on the light blue wire. When the TCCM grounds the light blue wire the actuator locks the axle.
How does the front axle control module work?
When a shift to AUTO 4WD, 4HI or 4LO is requested, the transfer case shift control module engages the front axle by grounding the front axle control circuit through a current limiting driver. This DTC detects a short to ground, short to voltage or an open circuit.
How does c0379 work on a Silverado Sierra?
C0379 is all about the axle actuator control circuit. Should be 12V on the brown wire at the actuator, and the TCCM should see 12V coming through the actuator on the light blue wire. When the TCCM grounds the light blue wire the actuator locks the axle. If either circuit is open, grounded, or shorted to voltage you will get that code.
What kind of motor is in front axle?
The front axle actuator motor consists of a permanent magnetic motor, a worm gear controlled plunger, a front axle switch and an electronic control circuit, all within the actuator assembly.
How to replace front axle actuator GMC Sierra?
1A Auto shows you how to replace the 4×4 front axle shift actuator on a 2002 GMC Sierra. This part is the same for many GM 4WD trucks. The procedure is the same for the GMC Sierra and Chevrolet Silverado, years 99, 00, 01, 02, 03, 04, 05, and 06.
Why is my front axle actuator not working?
The encoder motor keeps track of the proper position using the encoder feedback. The encoder is just a variable resistor. It can get worn and give bad readings to the TCCM. Here is a nice write-up on replacing the encoder (sensor wheel) inside the encoder motor. Front Axle Actuator: This part engages the front axle.
C0379 is all about the axle actuator control circuit. Should be 12V on the brown wire at the actuator, and the TCCM should see 12V coming through the actuator on the light blue wire. When the TCCM grounds the light blue wire the actuator locks the axle.
C0379 is all about the axle actuator control circuit. Should be 12V on the brown wire at the actuator, and the TCCM should see 12V coming through the actuator on the light blue wire. When the TCCM grounds the light blue wire the actuator locks the axle. If either circuit is open, grounded, or shorted to voltage you will get that code.
