Headlight load adjustment
Thread Starter
Senior Member
Joined: Jan 2008
Posts: 917
Likes: 1
From: peterborough UK
Car: 88 T firebird
Engine: 2.8
Transmission: t5
Headlight load adjustment
Hi, i was wondering if there was a way to lower the load threashold that shuts off the headlight motors ?
I havnt looked at the electronics yet but its like anything , there must be away and usually someone else has already done it !
I havnt looked at the electronics yet but its like anything , there must be away and usually someone else has already done it !
Re: Headlight load adjustment
Hi zs&tas ,
There are no built in adjustments for either up and down travel nor the up and down force in the electronic module that controls the headlight doors on the later models like ours . To alter this one would need to know transistor theory at the tinkerer's level whereby the most likely alteration would be a change of resistors that establish the threshold of current that the transistor cuts off power to the motor once end of travel is reached . Just to use for instance numbers if it cuts out at 5 amps and you want it to cut out at 3 amps , it's the transistor's bias circuit that would need alteration . A fixed resistor in just the right circuit spot being replaced with a variable resistor would likely allow such adjustment but without a schematic diagram of the unit it would be really hard nailing down which resistor exactly is the one that establishes the cut off current of the transistor feeding the motor .
There are no built in adjustments for either up and down travel nor the up and down force in the electronic module that controls the headlight doors on the later models like ours . To alter this one would need to know transistor theory at the tinkerer's level whereby the most likely alteration would be a change of resistors that establish the threshold of current that the transistor cuts off power to the motor once end of travel is reached . Just to use for instance numbers if it cuts out at 5 amps and you want it to cut out at 3 amps , it's the transistor's bias circuit that would need alteration . A fixed resistor in just the right circuit spot being replaced with a variable resistor would likely allow such adjustment but without a schematic diagram of the unit it would be really hard nailing down which resistor exactly is the one that establishes the cut off current of the transistor feeding the motor .