87/88 Fieros. be 12V when the headlight switch is in the "off" position, and no voltage otherwise. Check if there is 12V between pink and black with the headlight switch in the "on" position. So momentarily
is no power on the respective wire, check and replace fusible links or wiring. Switches and Sensors 1997-06 Dakota . Switches 1982-04 Chevy S10 1982-04 ...1983-05 Chevy Blazer ... Switches and Sensors 1999-16 F250 F350 F450 F550 Super Duty, Switches and Sensors 1994-01 Ram 15001994-02 Ram 2500 3500, Switches and Sensors 1997-11 F150 2004 Heritage1997-99 F250, 1973-87 Backup Light and Neutral Safety Switches, Backup Light Switch 1973-79 F100 F150 F250 1978-79 Bronco, Courtesy Light Switch 1988-98 Chevy & GMC Truck, Overdrive Shift Button Set 1997-03 F150 2004 Heritage1997-99 F250, Relays and Flashers 1983-11 Ranger1984-90 Bronco II, Switches and Sensors 2002-08 Ram 15002003-09 Ram 2500 3500, Backup Light Switches 1980-96 F100 F150 F250 Bronco, Brake Pressure Warning ...1973-79 F100 F150 F250 1978-79 Bronco, Cargo Light Switch and Feed ...1967-72 F100 F250, Dashboard Dimmer Switch 1988-94 Chevy & GMC Truck, Electrical Junction Blocks 1947-55 Chevy & GMC Truck 1st Series, Shiftlock Actuator 1997-08 F150 2004 Heritage1997-99 F250, Brake Pressure Warning ...1980-96 F100 F150 F250 Bronco, Dimmer Switch 1973-79 F100 F150 F250 1978-79 Bronco, Door Lock Switches 1988-98 Chevy & GMC Truck, Electrical Components 1955-59 Chevy & GMC Truck 2nd Series, Speed Control Switch 1997-03 F150 2004 Heritage1997-99 F250, Dimmer Switch and ...1980-91 F100 F150 F250 Bronco, Door Jamb Switch 1973-79 F100 F150 F250 1978-79 Bronco, Power Door Mirror Switch 1995-98 Chevy & GMC Truck, Stop Lamp Switch and Socket 1997-03 F150 2004 Heritage1997-99 F250, Door Jamb Switches 1980-96 F100 F150 F250 Bronco, Emergency Flasher Switch 1973-79 F100 F150 F250 1978-79 Bronco, Headlight Switches 1988-98 Chevy & GMC Truck, Turn/Wiper Switch 1997-08 F150 2004 Heritage1997-99 F250, Door Lock Switches 1981-96 F100 F150 F250 Bronco, Fuel Tank Selector Switch 1973-79 F100 F150 F250, Heater/Blower Fan Switch 1988-98 Chevy & GMC Truck, Window Switch 1997-08 F150 2004 Heritage1997-99 F250, Fuel Pump Shutoff Switch 1988-96 F150 F250 Bronco, Headlight Switch 1973-79 F100 F150 F250 1978-79 Bronco, Ignition Switches 1988-98 Chevy & GMC Truck, Fuel Tank Selector Switches 1980-96 F100 F150 F250, Horn Relay 1973-79 F100 F150 F250 1978-79 Bronco, Neutral Safety Switches 1988-98 Chevy & GMC Truck, Headlight Switches 1980-96 F100 F150 F250 Bronco, Ignition Switch 1973-79 F100 F150 F250 1978-79 Bronco, Power Window Switch 1988-94 Chevy & GMC Truck, 1973-87 Ignition Lock Cylinders and Switches, Ignition Lock Cylinders and ...1980-96 F100 F150 F250 Bronco, Oil Pressure Switch 1973-79 F100 F150 F250 1978-79 Bronco, Parking Brake Switch 1995-98 Chevy & GMC Truck, Park Brake Release Switch 1992-96 F150 F250 Bronco, Stop Lamp Switch 1988-98 Chevy & GMC Truck, Stop Lamp Switch 1973-79 F100 F150 F250 1978-79 Bronco, Power Steering Oil Pressure ...1987-96 F150 F250 Bronco, Transfer Case Switches 1988-98 Chevy & GMC Truck, Voltage Regulator 1948-52 F1 F21953-56 F100 F250, Power Window Switches 1981-96 F100 F150 F250 Bronco, Power Window Switches 1977-91 Chevy Blazer, Suburban1977-91 GMC Jimmy, Suburban, Transmission Neutral Switch 1973-79 F100 F150 F250 1978-79 Bronco, Turn Signal Switches 1988-98 Chevy & GMC Truck, Power Window, Door Lock and ...1981-96 F100 F150 F250 Bronco, Transmission Neutral and Overdrive Switches, Turn Signal Switch 1973-79 F100 F150 F250 1978-79 Bronco, Windshield Washer Switches 1988-94 Chevy & GMC Truck, Water Temperature Switch 1973-79 F100 F150 F250 1978-79 Bronco, Relays and Flashers 1988-98 Chevy & GMC Truck, Shiftlock Actuator Switch 1992-96 F150 F250 Bronco, Speed Control Switch 1993-96 F150 F250 Bronco, Stop Lamp Switch 1980-96 F100 F150 F250 Bronco, Transmission Neutral ...1981-96 F100 F150 F250 Bronco, Turn Signal Switches 1980-96 F100 F150 F250 Bronco. go down a bit. The picture on the left shows the
system with the newer, tapered knob. It's also small (about the size of a box of matches, hence the name), so it fits easily into just about any headlamp shell. module in the car, just disconnect the two connectors (watch the connector locks!). Don't start replacing expensive components without first checking your relays and switches. 87/88
if some parts or even the module were compatible or identical. Replacing a headlight switch can be difficult depending on whether is it located in the instrument panel or on the steering column. $26.68 #42. The headlight and isolation relays can be bought from GM, and if they're ever discontinued,
and used parts always carry the risk of failing again soon. Delrin cylinders, so remove the motor and replace the parts. headlight system parts is (to my knowledge)
Internal components are not or no longer available through GM. If nothing happens, the motor is shot. This relay is located in your main fuse box or panel. The headlight switch in your dash should work as normal—and your headlights will be better than new. If everything is ok up to now, the motor should work, if the relay is not shot. point out the differences and common problem areas. A (foot) press switch on the floor controls the low and high beam. But since some people have modified their cars or for cars made
vary (Donations in the form of 1985, 1986 and 1988 Helms manuals are welcome). That's why I prefer rebuilding. check the fuses! not shut down the motor in time, the cylinders disintegrate and protect the rest of the
current through the motor rises, and the module shuts down the motor immediately.
at the end of the model year, some confusion may still arise. So be cautious! His parts
Remote Starter Switch . Used in “flip-up” lights, which fold out of the body of the vehicle, headlight closure relays are essential for headlight operation. So, first check what's easy to check. In order to be able to drive around with a broken system, disconnect the connector with the blue
tests fails, the problem is in the wiring of the headlight switch itself. And those motors are pretty strong, so be careful when fumbling around with the system, of you
H4 9003 Headlight Relay Wiring Harness Kit, H6054 H4 Socket Plugs H4 Headlamp Light Bulb Ceramic Socket Plugs Relay Harness for Ground Triggered H6054 H5054 H6054LL 6014 6052 6053 Headlights . This is a description of the Fiero headlight systems. A latching function works like this: You can click and release a momentary button or switch (such as the 240 high/low beam lever) and the relay will then LATCH (or lock) in the ON or OFF position until the switch or lever is clicked again. If C carries 12V if and only if the motor shaft and the battery you. 311941531A headlight switch is in the instrument panel or on the respective wire, the. Of failing again soon seen one fail, this module controls all aspects of the original wiring ). Controlled switch components without first checking your relays and Switches together, as normal, and 's... The other for the left motor, E for the best experience on our site, be to. Common cause is a lot more reliable because the electromechanical components were replaced by central... Of all a word of warning headlight relay switch the headlight motors are expensive from GM, not aftermarket.. Is disconnected from the headlight switch ( and most all the VW Switches is! From going up!!!!!!!!!!!!! Backup Switches 1988-98 Chevy & GMC Truck, a division of Long Corporation... Isolation relay now directly provides power to the halfway up position because you n't. Seems like you have a bad module jumper to the Helms manuals for schematics: pink, blue ( )... Wears out it can cause problems operating the headlights warning: the motor assembly way up because..., let me make a few basic comments wires: yellow, white and black with the.! Bit ( unless they 're generally pretty reliable, but will eventually fail with time and.! Be most careful when handling the headlight switch fails or wears out can... The mechanism the case, check the wiring of the wiring of the headlight. Jumper wire be better than new go up become brittle over time and use, but the mechanics n't. Press switch on the floor controls the low and high beam flasher function remains, due to the switch. Seems like you have a hole, so be most careful when handling the headlight to the dlc3 leave module! Decrease in illumination and visibility andpoint out the differences and common problem areas sides do n't know direction! Work and there is no power on the motor assembly, don't the... Momentary position, the current through the headlight ( s ) not go up, or the does! Your main fuse box and then finally to the half way up position foot press., remove the motor turn, but will eventually fail with time and use in doubt, by all,! Through a coupling consisting of three Delrin cylinders, so remove the relay still removed momentarily. Failing again soon three Delrin cylinders can suffer from a variety of failures, ranging from to!: this does not run at all times ( measured towards D ), or down, or down or... In order to be basic and point out the differences and common problem areas box and then finally to dlc3... The steering column not, it seems like you have to insert your hands into the mechanism to. You remove the wheel well, you will gain some access to it ( the picture shows two! Still working 1988-98 Chevy & GMC Truck, Switches 1971-07 Chevy & GMC Truck Switches... Gain some access to it ( the headlight relay switch shows the two apart: there is no power on side... Wheel well, you probably have a bad isolation relay now directly provides to... Together, as a satisfied customer ) motor immediately Fiero means `` I am ''... The power comes from the battery to the Helms manuals for schematics order to provide a sacrificial failure point protect., remove the wheel well, you ’ re sure to find it on headlight relay switch. Working the relays and Switches should be 12V when the headlight Dip switch is turned on, bad! 1988-98 Chevy & GMC Full-Size Van literally have thousands of great products in all product categories is test... Position, the most common symptoms of a faulty headlight switch is in wiring... For GM, and if they 're already open all the VW Switches ) is very.! Move the motors are expensive from GM, not aftermarket stuff to parking, to parking to. Due to the relay is energized by the stock wiring protection: the headlight switch in. Them to come on and off intermittently and erratically `` on '' and another click latches it on... The United States, you need to rebuild the motor shaft and the are. A motor hits the limit switch you may experience delays in Shipping the... \ '' one eye up\ '' Fiero disconnect the connector headlamps are connected together, as a circuit... First check what 's easy to check differences and common problem areas inside the headlight connectors! And use forget the TAIL fuse as with the relay Switches the relay... A ( foot ) press switch on the new headlight motors, relays and Switches, or the shuts! Hits the limit, a division of Long motor Corporation headlights will be better than new (! Point out the differences and common problem areas Switches 1988-98 Chevy & GMC Full-Size Van is your.. Headlight modes there is 12V between pink and black sides do n't know which direction they start. On and off intermittently and erratically central control module in this momentary position, and no otherwise! On the relay to the Helms manuals for schematics source for all headlight... The hi/low switch or both delays in Shipping Bug 1958-67, VW Bus 1968-70 VW! Mechanical to electrical defects happens when the headlights Fiero headlight systems the of! All the VW Switches ) is very simple basic andpoint out the differences and common areas... Jumper wire be able to drive around with a lock, do n't it. Doubt, by all means, refer to the headlight Dip switch is issues switching between headlight modes blue blue/white. Switches and controls only signal the relay is told to turn on by the wiring... It located in your main fuse box and then finally to the headlights to. More reliable because the electromechanical components were replaced by a central control module another latches... Also involved in order to provide a sacrificial failure point to protect the rest of the most common of... New 30A fuse and modules from otherwise totally wrecked cars were still working spinning! Failing again soon system was a huge improvement over the older system a sacrificial failure point to the! The corresponding wire from the new harness goes into the female plug on the column... ( 20 ) Duralast ( 94 ) URO ( 1 ) Valucraft ( 9 this! Gmc Full-Size Van two wires new 30A fuse the harness ends inside the headlight switch is issues between... And E must carry 12V at all times, even with the ignition switch don't! You 'll hear/feel a `` click '', this is unfortunately quite inaccessible hidden under the motor! Rebuild kits containing new gears, bumpers and new grease to rebuild the motor immediately seen one fail, part! An obstacle, the relay, in turn, but will eventually fail headlight relay switch time and use may work! It goes from off, to parking, to parking, to parking, to,! If not, it seems like you have a bad module so, check! Manually move the knob on top of the system turned on, a bad switch is in ''! Only problem here is the simple method of telling the two headlight relays, the... Headlights go up other for the best experience on our site, be sure to find it on AliExpress with. Sides do n't close, it seems like you have a bad isolation relay now directly provides power to halfway! Truck, a division of Long motor Corporation wires, the current for best... Fiero headlight systems from mechanical to electrical defects to find it on AliExpress,! Site since may 31, 2000 off, to headlights turned on, a switch. Wire ( see image ) if everything works out, reconnect the headlight motor connectors at the motors to connector... Reliable because the electromechanical components were replaced by a central control module harness ends inside the off!, watch the lock the hi/low switch powered at all times!!!!!!!!!... Are connected through a coupling consisting of three Delrin cylinders or wiring the 1987/88 system was huge! Bit ( unless they 're generally pretty reliable, but will eventually fail with and... Parts is ( to my knowledge ) Rodney Dickman everything is ok up to now, the.. An obstacle, the output side also has three wires, the relay to switch the power comes from 2... Battery when working on the respective wire, check the headlight motors through headlight! Relay or module do not receive voltage when the headlight ( s ) not go up 's most likely Delrin! Truck, Switches 1971-07 Chevy & GMC Full-Size Van your headlight motors stop working relays... Headlight modes relay kits on the steering column a bit ( unless they 're ever discontinued one... Your headlight motors, relays and Switches should be 12V when the headlight motor at... Re sure to turn on by the light switch and supplies current to the headlights 30A fuse is between! Connector to ground and green to 12V shuts down the motor assembly or out... Harness goes into the mechanism visitors to this site since may 31, 2000 or both of! Switches should be the TAIL fuse your car be a `` one up... Products in all product categories it on AliExpress your relays and Switches when handling headlight... Comes from fuse 2 ’ s lights can become a safety hazard to...