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Stop Lamp Bulb Fault

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#1 gazzamills



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  • Name: gary
  • Ford Model: smax 2.5t
  • Year: 2007
  • Location: Berkshire

Posted 05 June 2011 - 01:10 PM

HI all

i have recently purchased a 2.5t smax which i am very happy with. but the last couple of days i have a problem with the lower brake lights..... they dont work, the upper light appears to be fine. On the computer it gives me the message that states' stop lamp bulb fault' . I have checked the manual and it says one or both brake bulbs need changing, i have changed both, although i think they were ok but with no joy.Inside the car down by the brake pedal there does appear to be a lead with a small plug hanging, but i cannot see where this plug has come disconnected from, if at all.

Would appreciate some feedback guys and lasses if possible.


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#2 digidash


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  • Ford Model: cougar
  • Year: 2014
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Posted 05 June 2011 - 02:00 PM

hi, see below...common fault

Should a customer express concern that the warning message <STOP LAMPS BULB FAULT> is displayed on the instrument cluster, the probable cause is the load resistor wiring detached completely at the end of the ceramic body.

To rectify the concern, a new wiring loom for the high mounted stoplamp should be installed.

1. Remove the high mounted stoplamp (two screws).

2. Remove the upper part of the liftgate trim panel.

3. Locate and cut the high mounted stoplamp wiring loom.

Close the tailgate.
Remove and discard the high mounted stoplamp wiring loom.

4. Install a new high mounted stoplamp wiring loom.

Open the tailgate.
Cut off the electrical connector of the spare part.
Make sure that the grommet is installed correctly.

5. Remove the insulation at the cable ends.

6. Insert the stripped ends of the wires into the solder crimp connector (see Parts Required).

7. Crimp the connection.

8. CAUTION: Do NOT damage any surrounding wiring.

Using a hot air gun, heat the shrink sleeving.

Using tape (see Parts Required) to insulate the repair area.

9. Install all remaining parts in reverse order.

10. Check the functionality of the high mounted stoplamp.

regards steve

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