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Ken
Ken, ASE Certified Technician
Category: Buick
Satisfied Customers: 754
Experience:  GM & SATURN Factory Trained Technician, 25 Years Experience
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1999 Buick Regal - where is headlight relay located

Customer Question

1999 Buick Regal - where is headlight relay located
Submitted: 4 years ago.
Category: Buick
Expert:  Ken replied 4 years ago.
Hi and thanks for your question! I do not see a relay. I am going to send you the wiring diagrams so they can help you diagnose this problem. Ken
Expert:  Ken replied 4 years ago.
Object Number: 349157  Size: FS
Expert:  Ken replied 4 years ago.
I am sorry, I lost Justanswer for 15 mins. Ken Object Number: 349159  Size: FS
Customer: replied 4 years ago.

Ken,

I have a Haynes repair manual for this vehicle which has a headlight relay in the schematic. Autozone sells the relay for this vehicle application. Online I found the relay as an Airtex 1R1057.

Is your schematic for this vehicle?

Expert:  Ken replied 4 years ago.
I will double check.Ken
Expert:  Ken replied 4 years ago.

Looks right. Ken

Expert:  Ken replied 4 years ago.
Is the low beams or high beams out? Or both Ken
Customer: replied 4 years ago.

Both high and low beam are out.

Running lights work OK

Headlights come on when I pull back on the directional lever (to flash lights), so power and grounds to lights are probably OK

 

Expert:  Ken replied 4 years ago.
It sounds like a dimmer switch is bad. Check for power going into the dimmer switch and power coming out. I have seen the contacts in those switches go bad. Ken
Expert:  Ken replied 4 years ago.

You will also need to check the head lamp switch. You are loosing a ground for the head lamps. In ether the dimmer switch or the headlamp switch. Ken

Customer: replied 4 years ago.

What gets me is that the lights can be turned on manually with the pull switch on the dash or they come on automatically at dusk.

 

Strange that Advantage Auto had a headlight relay for this car

Expert:  Ken replied 4 years ago.
The flash to pass uses its own ground and so does the day lamp module. Ken
Expert:  Ken replied 4 years ago.
Do the high and low beams work at night when they come on at dusk? Ken
Expert:  Ken replied 4 years ago.
Headlamp Switch Replacement

Removal Procedure


    Object Number: 326097  Size: SH

  1. Using a plastic flat-bladed tool as an aid if necessary, pull the rearward edge of the LH instrument panel (IP) access opening cover outboard to release the retainers.
  2. Release the forward edge of the LH IP access opening cover from behind the hinge pillar and remove the cover.

  3. Object Number: 506429  Size: SH

  4. Remove the screws retaining the headlamp switch.

  5. Object Number: 468735  Size: SH

  6. Carefully pull the headlamp switch outboard away from the IP to access the electrical connector.
  7. Disconnect the electrical connector from the headlamp switch.

Installation Procedure


    Object Number: 468735  Size: SH

  1. Connect the electrical connector to the headlamp switch.
  2. Align the headlamp switch tabs to the IP and install the switch into position.

  3. Object Number: 506429  Size: SH

     

  4. Install the headlamp switch retaining screws.
  5. Tighten
    Tighten the headlamp switch retaining screws to 1.8 N·m (16 lb in).


    Object Number: 326097  Size: SH

  6. Align and insert the forward edge of the LH IP access opening cover behind the hinge pillar.
  7. Align the IP access opening cover retainers to the slots on the IP trim pad and press firmly to secure.
Ken, ASE Certified Technician
Category: Buick
Satisfied Customers: 754
Experience: GM & SATURN Factory Trained Technician, 25 Years Experience
Ken and other Buick Specialists are ready to help you
Expert:  Ken replied 4 years ago.
Please remember to click "accepted" or I do not get compensated for helping you tonight. Thank You Ken
Expert:  Ken replied 4 years ago.
Thanks, XXXXX XXXXX know if you need more information and what you find. Ken

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