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No blinkers no hazards no brake lights and headlights acting up


2.9._ranger

Well-Known Member
Joined
Jan 30, 2024
Messages
137
City
texas
Vehicle Year
1989
Transmission
Manual
I think the blinkers and hazards are multi function switch because the wipers don’t work either, but onto the next topic when I turn my headlights on the actual halogen bulbs don’t turn on only the blinkers bulbs and side marker bulbs do and all my grounds are good I’ve taken them all off and cleaned them and made sure they had good contact with bare metal but the headlights still don’t want to turn on I need help figuring this out. The photo is with the brights on
 

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Update: I fixed my blinkers and hazards and brake lights all that’s not working is the halogen bulbs
 
The dash switch (not column) should illuminate side marker/running/tail (low brightness element) on the FIRST pull out, and turn the headlights on (by sending power to the multifunction for either high or low) on the SECOND pull out (regardless of key position).

The side marker/running light/tail light (low brightness element) all run direct from that switch - they do NOT go through the multifunction (column)

When you pull the dash switch back 2 positions (to headlights on) it routes power through to the multifunction, then from the multifunction it goes to the the high/low... so if your multifunction is borked you might very well have no headlights.

Hazards light the brighter element on the tail/front they rejoin the wiring before the multifunction - but it is the same element as turning, so if the multifunction is borked you would have no hazards either.
I'm looking at Haynes 12-21 for that ^^ Need a pic?

A) Assuming your multi function (on the column) is good (which we don't right :) ) if you leave the dash switch off and do a "flash to pass" does anything light up (should be high beams I think)?

It sounds like to me your multifunction has totally puked and that might be your only problem.
 
[img deleted]

I just realized that is too blurry to read, stand by for a better copy, sorry.

IMG20241116193323.jpg
 
Last edited:
The dash switch (not column) should illuminate side marker/running/tail (low brightness element) on the FIRST pull out, and turn the headlights on (by sending power to the multifunction for either high or low) on the SECOND pull out (regardless of key position).

The side marker/running light/tail light (low brightness element) all run direct from that switch - they do NOT go through the multifunction (column)

When you pull the dash switch back 2 positions (to headlights on) it routes power through to the multifunction, then from the multifunction it goes to the the high/low... so if your multifunction is borked you might very well have no headlights.

Hazards light the brighter element on the tail/front they rejoin the wiring before the multifunction - but it is the same element as turning, so if the multifunction is borked you would have no hazards either.
I'm looking at Haynes 12-21 for that ^^ Need a pic?

A) Assuming your multi function (on the column) is good (which we don't right :) ) if you leave the dash switch off and do a "flash to pass" does anything light up (should be high beams I think)?

It sounds like to me your multifunction has totally puked and that might be your only problem.
My multifunction switch is good because my I got my blinkers hazards and wipers working again all it was is that there was a plug to the switch that hadn’t gone all the way in
 

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