So after I got the grey ghost put back together from her water pump issues, I notice the service 4wd light on. The truck is a 2wd, after calling the dealership and letting them check the vin to make sure it's not a 4wd (because obviously I wouldn't know) they say they have no idea but for $400 theyll trouble shoot and diagnose the problem for me, anyone with a 2wd have this issue?

 

That's weird...do you know anyone with a DRBIII or something similar? If you were closer I'd do it. Should just clear out.

 

Unfortunately no i don't, I imagine I could get one instead of paying $400 to the dealership

 

Scratch that it doesn't appear I can even get a cable for $400

 

Try resetting the systems by pulling the battery cable, hopefully its an easy fix

 

I found this post from the Durango Section.... kinda sorta applies here a little bit...

SUBJECT:
"Service 4WD" Lamp Illuminated On 4X2 Vehicles
OVERVIEW:
This bulletin involves installing a revised HVAC control assembly.
MODELS:
2001 (AN) Dakota
2001 (DN) Durango
NOTE: THIS BULLETIN APPLIES TO 4X2 VEHICLES BUILT BEFORE
OCTOBER 13, 2000 (MDH 1013XX).
SYMPTOM/CONDITION:
The “Service 4WD” lamp is illuminated even though the truck is not a 4X4 vehicle.
DIAGNOSIS:
Start the engine. Once the instrument cluster bulb check has been completed,
verify that the “Service 4WD” lamp is illuminated. If the “Service 4WD” lamp
is illuminated, perform the Repair Procedure.
08-032-00 REV. A -2-
PARTS REQUIRED:
Qty. Part No. Description
AR (1) 55055904AE Assembly, HVAC Control, Durango With
Rear Heat And A/C
AR (1) 55055907AE Assembly, HVAC Control, Durango Without
Rear Heat And A/C
AR (1) 55055905AF Assembly, HVAC Control, Dakota, With A/C And
Rear Window Defogger
AR (1) 55056408AE Assembly, HVAC Control, Dakota, With A/C,
Without Rear Window Defogger
AR (1) 55055906AF Assembly, HVAC Control, Dakota, Without A/C,
With Rear Window Defogger
AR (1) 55056409AE Assembly, HVAC Control, Dakota, Without A/C,
Without Rear Window Defogger
REPAIR PROCEDURE:
THIS REPAIR IS COMPATIBLE WITH DAIMLERCHRYSLER’S MOBILE
SERVICE PROGRAM AND DOES NOT REQUIRE HOISTS OR OTHER
FULL SERVICE FACILITY SPECIAL EQUIPMENT.
WARNING: DISABLE THE AIRBAG SYSTEM BEFORE ATTEMPTING INSTRUMENT
PANEL COMPONENT SERVICE. DISCONNECT AND ISOLATE THE BATTERY
NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE AIRBAG
SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS
OR SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE AIRBAG SYSTEM.
FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL
AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.
1. Disconnect and isolate the battery negative cable.
2. If the vehicle is equipped with an automatic transmission, turn the ignition
switch to the Unlock position, set the park brake, and place the transmission
gear selector lever in the LOW position.
3. If the vehicle is equipped with a tilt column, set the tilt steering column in its lowest position.
4. Reach under the left end of the instrument panel to access and unsnap the rod end clip
on the park brake release link and disengage the link from the back of the handle (Fig. 1).
-3- 08-032-00 REV. A
Fig. 1 STEERING COLUMN OPENING COVER INSTALLATION
1 - STEERING COLUMN OPENING COVER
2 - HOOD RELEASE HANDLE
3 - SCREWS
4 - PARKING BRAKE RELEASE HANDLE
5. Remove the three screws that secure the lower edge of the steering column
opening cover to the lower instrument panel reinforcement.
6. Using a trim stick or another suitable wide flat-bladed tool, gently pry the upper edge
of the steering column opening cover just below the cluster bezel on each side of the
steering column away from the instrument panel far enough to disengage each of the
snap clip retainers from their receptacles in the instrument panel base trim
Fig. 2 STEERING COLUMN OPENING COVER
1 - INSTRUMENT PANEL TOP COVER
2 - STEERING COLUMN OPENING COVER
3 - SCREW
4 - HOOD RELEASE BRACKET
7. Remove the steering column opening cover from the instrument panel.
08-032-00 REV. A -4-
8. Remove the two screws in the hooded area above the instrument cluster that
secures the cluster bezel to the instrument panel base trim (Fig. 3).
Fig. 3 CLUSTER BEZEL
1 - SCREWS
2 - CLUSTER BEZEL
9. Using a trim stick or another suitable wide flat-bladed tool, gently pry around
the perimeter of the cluster bezel to disengage the snap clips from their
receptacles in the instrument panel base trim.
10. Pull the right side of the cluster bezel away from the instrument panel far enough
to access and disconnect the instrument panel wire harness connector for the
headlamp switch from the switch connector receptacle.
11. Pull the left side of the cluster bezel away from the instrument panel far enough to access
and disconnect the instrument panel wire harness connectors from the receptacles for
the passenger airbag ON/OFF switch (if equipped), the rear window defogger switch (if
equipped), the HVAC control, and the transfer case switch (if equipped).
12. Remove the cluster bezel from the instrument panel.
13. Remove the four screws that secure the HVAC control to the cluster bezel (Fig. 4).
-5- 08-032-00 REV. A
Fig. 4 HVAC CONTROL
1 - HVAC CONTROL WIRING HARNESS CONNECTOR
2 - HVAC CONTROL
3 - HVAC CONTROL MOUNTING SCREW
14. Remove the HVAC control from the instrument panel.
15. Position the new HVAC control (see Parts Required section) in the cluster bezel and
secure it with four screws. Tighten the screws to 2.2 N·m (17 ±3 in. lbs.)
16. Position the cluster bezel to the instrument panel.
17. Pull the left side of the cluster bezel away from the instrument panel far enough to
access and reconnect the instrument panel wire harness connectors to the receptacles
for the passenger airbag on/off switch (if equipped), the rear window defogger switch (if
equipped), the HVAC control, and the transfer case switch (if equipped).
18. Pull the right side of the cluster bezel away from the instrument panel far enough
to access and reconnect the instrument panel wire harness connector for the
headlamp switch to the switch connector receptacle.
19. Align the snap clips on the cluster bezel with the receptacles in
the instrument panel base trim.
20. Using hand pressure, press firmly on the cluster bezel over each of the snap clip
locations until each snap clip is fully engaged in their receptacle.
21. Install and tighten the two screws in the hooded area above the instrument
cluster that secure the cluster bezel to the instrument panel base trim (Fig.
3). Tighten the screws to 2.2 N·m (20 in. lbs.).
22. Position the steering column opening cover to the instrument panel.
23. Align the snap clip retainers on the steering column opening cover with the
receptacles in the instrument panel base trim.
24. Using hand pressure, press firmly on the steering column opening cover over the snap
clip locations until each of the snap clips are fully engaged in their receptacle.
25. Install and tighten the three screws that secure the lower edge of the
steering column opening cover to the instrument structural support. Tighten
the screws to 2.2 N·m (20 in. lbs.).
26. Reach under the left end of the instrument panel to access and engage the
park brake release link to the back of the handle. Then snap the rod end clip
over the park brake release link to secure the connection.
27. Reconnect the battery negative cable.
28. On vehicles equipped with A/C, perform the A/C cool down test using the DRBIII®.

 

A mid-level scanner will include a cable. $80 or less at Advance, O'Reilly's, etc.

 

The ones I found online were $3000 and up I'll let it sit overnight with the battery cables off, if that doesn't fix it I'll go check out autozone

 

That's b/c you're looking for a DRB-III Scanner... you wont find those cheap...

The ones he's talking about in the $80 range are OBD-II Scanners.... which might help you if you get one that has built-in diagnostic tests.

Might be time to go see the dealer though... they might have seen this problem before in their database.... but $400 is Outrageous for a diagnostics fee.... usually its only $95....