2003 Expedition Need Help ABS/4WD not working

[fegpa63]

Hey guys I live in Michigan we got a lot of snow and I was driving the 2003 Expedition with 172k today and the ABS light came on and my ABS stopped working, the advance trac auto 4wd stopped working too. Dash says "check advtrac"..... If I put it to "Auto4wd" setting its just in 2wd still, but if I put it to actual "4wd" mode the 4x4 works. The 4x4 high light blinks in auto4wd mode. I took it and scanned the codes and I got:

C1963
B1342
C2778
C1285
U1900
U1901
C2777

Any Idea what these all could mean? Did something get messed up from all the snow we had and short circuited out? Not sure why all these codes would happen at once

Thanks!

 

[stamp11127]

Google the codes. I would expect an electrical (harness) issue with that many codes coming at one time.

 

[Bedrck47]

C1963 Stability System (ABS) Inhibit Warning ABS Module This DTC is for information only. GO to the Principles of Operation. CLEAR the DTC. REPEAT the self-test.

B1342 ECU Is Defective ABS Module CAUTIONo not replace ABS modules installed on vehicles built before February 2003 with those manufactured after February 2003.

CLEAR the DTCs. RETRIEVE the DTCs. If other DTCs are retrieved, repair them, CLEAR the DTCs, and REPEAT the self-test. If DTC B1342 is retrieved, INSTALL a new ABS module. REFER to Anti-Lock Brake System (ABS) Module — Stability Assist . REPEAT the self-test.

C2778 Sensor Cluster Power Supply Failure ABS Module Go To Pinpoint Test H .

C1285 Booster Solenoid Circuit Failure ABS Module Go To Pinpoint Test I

U1900 CAN Network #1 Communication Bus Fault-Receive Error Network Fault REFER to Section 418-00 .

U1901 CAN Network #2 Communication Bus Fault-Receive Error Network Fault REFER to Section 418-00 .

C2777 Sensor Cluster Bus Failure ABS Module Go To Pinpoint Test H .

 

[Bedrck47]

Visual Inspection Chart

Mechanical

Wheel speed sensor ring
Hydraulic control unit (HCU)
Incorrectly inflated tires
Mismatched wheels or tires on vehicle
Base brake concern
Brake booster vacuum hose
Ford specified steering components, suspension components and tire size
Steering wheel rotation ring

Electrical

Battery junction box (BJB) fuse(s):
2 (20A)
16 (10A)
28 (5A)
102 (30A)
103 (30A)
112 (30A)
Anti-lock brake system (ABS) module
EVAC and fill connector
Wheel speed sensor
Stability assist/Advance Trac® switch
BPP switch
Steering wheel rotation sensor
Brake booster solenoid
Brake booster release switch
Primary/main pressure transducer
Yaw rate sensor
Lateral accelerometer.
Longitudinal rotation sensor (4x4 vehicles)
Brake light switch
IVD stoplamp relay
Brake fluid level switch
Wiring harness
Connectors or connections
Circuitry

 

[fegpa63]

Whoa Roxy thanks, not sure what to make of all that. When I checked the ABS codes with the reader I cleared them but they all came right back. I do know I got a right rear wheel speed sensor issue about 6 months ago that was never replaced, but that speed sensor code wasnt in the codes retrieved this time, I cleared it months ago it never came back

Basically is the ABS module fried or ?

 

[Bedrck47]

read the attached link Post #14 it will give you some info on the pink wire also may be referred to as purple wires

http://www.expeditionforum.com/f41/no-gauges-nav-radio-25960/#post212529

 

[fegpa63]

Hey guys - if my right rear wheel speed sensor was bad, could this cause all these problems I'm having? It seems the tech articles say fix the other DTC's and re-run the test to check for more DTC's before succumbing to the B1342 ABS module death code DTC

Just want to check because like I said that was a known issue 6 months ago and wasnt fixed, but it is not listed in the current DTC's, it never came back once I cleared it awhile back

Also - the fuses Roxy referred to, are these in the central junction box by the passenger kick panel or is there a seperate Battery Junction Box"?

 

[Bedrck47]

the fuses in the smart junction box right side kick panel

 

[fegpa63]

2 days later the ABS suddenly started working. The traction light is still on solidly, so took to mechanic they think everything is from the rear wheel speed sensor so I will be replacing that. For now the ABS is working thanks all for help hopefully I will get it to 100% working order

 

[DetroitDarin]

fwiw, mine did something like that - was bad wheel bearing. The wheel bearing was throwing off the sensor as it wobbled.

 

[stamp11127]

In order for the ABS to work correctly all of the wheel sensors have to be working and communicating with the ABS module.

You still have an issue with the traction control.