Question about 2005 Ford F-150
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Posted on Jan 02, 2017
SOURCE: 2004 F150 Tail light problem
I would check your Auxiliary relay box. Check the R03 relay you might need to replace it. The Auxiliary relay box is located in the engine compartment (driver side)
Posted on Jan 31, 2009
If it only happens when you turn the switchto the parking lights then it is most likely the swich that is the problem. Light swich failure appears to be a common fault with fords
Posted on Apr 23, 2009
check the fuses and relays under the hood next to the battery. if they still dont work it might be in the wiring or if it has a tow package it might be in the trailer wiring
Posted on Feb 09, 2010
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Sep 07, 2016 | 2002 Isuzu Rodeo
The marker lamps
The tail lamps
The license lamp
The front marker lamps are grounded through the turn filament of the respective front park/turn lamp. The front marker lamps light as a result.
The automatic lamp control function turns on the park lamps and the headlamps. This action occurs when the ambient light sensor determines that the exterior lamps should be turned ON based on the amount of available light. When the BCM grounds the park lamp relay, voltage is supplied directly to the park lamps, bypassing the turn/headlamp switch assembly. When this action occurs, the following conditions exist:
The automatic lamp control relay is grounded.
The headlamps turn ON. Refer to Headlights/Daytime Running Lights (DRL) Circuit Description .
The lamps turn OFF when the BCM does not ground the park lamp relay or the automatic lamp control relay. This action is caused by the following conditions:
The available light reaches a predetermined level.
The ignition switch is turned to the OFF position
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