All my lights work on my 2005 ford focus except the lower brake lights and turn signals. all fuses are good.

Do you know anything about automotive electronics ?
Stoplamps
The stoplamps are part of the rear lamp assembly. When the brake pedal is applied, the stoplamp switch supplies voltage to the generic electronic module (GEM) and the high mounted stoplamp. The GEM then supplies voltage to the rear lamps.

Turn Signal Lamps and Hazard Warning Lamps
The turn signal lamps and hazard warning lamps system consists of:

• Hazard switch
• Multifunction switch
• GEM
• Turn signal lamps

When the multifunction switch is placed in the LH or RH turn positions, a voltage signal from the GEM is routed to ground. When the GEM detects the multifunction switch in the LH or RH turn position, the GEM supplies voltage to the appropriate turn lamps in a flashing manner. When operating correctly, the turn lamps flash approximately 80 times per minute.
When the hazard warning switch (located in the upper part of the center console) is switched on, a voltage signal from the GEM is routed to ground. When the GEM detects that the hazard switch is switched on, the GEM supplies voltage to all the turn signal lamps in a flashing manner. When operating correctly, the hazard lamps flash approximately 80 times per minute.

Do you know how to test electrical circuits with a DVOM - digital volt ohm meter , how to read an use a wiring diagram to pin point locations in a electrical circuit for testing B+ voltage an ground ?

Free wiring diagrams
http://www.bbbind.com/free_tsb.html Enter your vehicle info . year ,make , model an engine size . Under system click on lighting ,then under subsystem click on turn signal lamps . Click the search button then each blue link , one at a time .


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