4WD Fuse 24 keeps blowing?

SPARKYPETE

MEMBER
1998 CHEVROLET 1500
5.7L
V8
4WD
AUTOMATIC
280,000 MILES

Vin #: 2GCEK19R0W1211770

I am looking for an electrical schematic.

I have a 243c transfer case, automatic.

I have installed brand new transfer case, transfer case switch, front 4x4 actuator, and encoder motor.

When I disconnect these new parts, the fuse still blows.

Vehicle will go into 2HI but not 4HI or 4LO.

DTC Codes are #1 and #2

What else does circuit 241 operate?

Do you have access to an electrical schematic for my particular VIN# regarding this issue?

Any help would be appreciated.

3 Replies

JACOBANDNICKOLAS

MECHANIC
109,650 POSTS

Hi,

I attached the wiring schematic I have below. From what I'm seeing, power from fuse 24 goes to the front axle actuator, spare power source, and the auxiliary battery relay. Chances are the last two things I listed aren't present.

Take a look through the pics below and let me know if they help.

Take care,

Joe

See pics below: Note: I cut the schematic in half to make it readable. I did overlap the two and highlight the relevant wiring.

Images (Click to make bigger)