Operation CHARM: Car repair manuals for everyone.

Electrical - MIL ON/No Crank/No Start/DTC's Set

TSB 10-1-8

02/01/10

PCM - BATTERY JUNCTION BOX (BJB) - POSSIBLE
MIL ON WITH MULTIPLE DTCS, NO CRANK/NO
START, DRIVABILITY SYMPTOMS

FORD:
2007 Edge

LINCOLN:
2007 MKX

This article supersedes TSB 7-16-5 to remove the production build date and TSB 7-17-9 to update the Service Procedure.

ISSUE
Some 2007 Edge and MKX vehicles may exhibit concerns that results in no crank/start, buck/jerk, lack/loss of power and/or malfunction indicator lamp (MIL) with one or more diagnostic trouble codes (DTCs) present. This could be caused by a poor fuse terminal fit, loose or unseated wire terminal connection at the Battery Junction Box (BJB) located near the battery under the hood.

ACTION
If loose and/or unseated wiring terminals for fuses
and relays are found in the BJB, follow the Service
Procedure steps to correct the condition.

SERVICE PROCEDURE

1. Disconnect the vehicle battery.





2. Open the BJB top cover. (Figure 1)

3. Check for loose fuse connections in the BJB at fuse positions 30, 31, 32, 33, and 34. If poor terminal fit is present, note those fuse cavities for Step 6.





4. Remove all the mini fuses, relays and diodes (suggest taking a picture of the layout so install is easier). (Figure 2)

a. Do not remove the cartridge fuses from the BJB.





5. Remove the light gray retainer that the devices were plugged through. This will expose the terminals within the plastic housing. (Figure 3)

6. Locate the terminal cavities identified in procedure Step 3 that require repair. The tuning forks will be off center in relation to the plastic cavities or open.

7. Insert a small flat blade screw driver/pick tool into the suspect tuning fork slot. The flat blade screw driver/pick tool width should be a maximum of 0.05" (1.25 mm) to provide access into the cavity. Tip dimensions were 0.04" x 0.04" (1 mm x 1 mm) with a 45 degree taper).





8. The small flat blade screw driver/pick tool should be inserted to the outside of the tuning fork leg between the tuning fork leg and the plastic wall of the housing cavity. (Figure 4)





9. Pry the screw driver/pick tool against the plastic cavity wall and against the side of the tuning fork leg. This will move the tuning fork legs together, tuning fork legs should be close to touching. (Figure 5)





10. Next remove the BJB from the splash shield. (Figure 6)





a. Tug on the underside wires to determine the unseated terminal location. (Figures 7 and 8)

NOTE
THIS MAY REQUIRE SOME LEVEL OF HARNESS REMOVAL FROM THE VEHICLE MOUNTING LOCATIONS TO ADEQUATELY ACCESS THE LEADS ON THE UNDERSIDE OF THE BJB BLOCK.

11. Any circuits that do not offer any resistance during the tugging operation should be reseated using the Push-Click-Tug method.

a. Push the terminal back into the cavity.

b. Listen for an audible click to assure lock engagement.

c. Tug on the lead to insure a proper seat occurred.

12. Once all the BJB circuits have been verified as seated, proceed to the next steps.

13. Install and lock the BJB block back into the splash shield.

14. Install the light gray retainer.

15. Reinstall all the mini fuses, relays and diodes back into their specific locations.

a. Make sure all the relays are replaced in the proper orientation.

16. Close the BJB cover.

17. Reconnect the vehicle battery cable.

WARRANTY STATUS: Eligible Under Provisions Of New Vehicle Limited Warranty Coverage And Emissions Warranty Coverage
IMPORTANT: Warranty coverage limits/policies are not altered by a TSB. Warranty coverage limits are determined by the identified causal part.

OPERATION DESCRIPTION TIME

100108A 2007 Edge, MKX: Follow 0.6 Hr.
The Service Procedure To
Check For And Repair
Loose/Unseated Wiring
Terminals (Do Not Use
With Any Other Labor
Operations)

DEALER CODING
CONDITION
BASIC PART NO. CODE
14290 X2





Disclaimer