Headlights turn off intermittently while driving

JERMAPHILIA

MEMBER
1994 JEEP CHEROKEE
4.0L
6 CYL
4WD
AUTOMATIC
232,950 MILES

While operating my vehicle, it’s a common issue that while I’m driving down the road, at random my headlights shut off. Dash lights and parking lights all still work even when the headlights go out, and I refuse to use my high beams because it increases the chances of the headlights just going out on me while driving. I suspect it’s a loose connection, or grounding issue but I’m unsure of where to start diagnosing. Anyone had this problem and solved it? Thanks in advance!

1 Reply

JACOBANDNICKOLAS

MECHANIC
109,875 POSTS

Hi,

It sounds like the switch is actually bad. Over time, a circuit breaker in the switch will get weak and fail. Have you replaced it yet?

Also, can you let me know if the vehicle is a standard Cherokee or a Grand Cherokee?

I attached a pic from a standard Cherokee and circled the internal circuit breaker for the headlamps. I have a feeling that it kicks off (turning headlamps only off) and then cools off and works again.

If this is a standard Cherokee ( not a Grand Cherokee) here are the directions for replacing the switch.

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1994 Jeep Truck Cherokee 4WD L6-242 4.0L VIN S MFI
Procedures
Vehicle Sensors and Switches Sensors and Switches - Lighting and Horns Headlamp Switch Service and Repair Procedures
PROCEDURES
1. Disconnect battery ground cable, then pull control knob fully outward.
2. Working from underneath instrument panel, depress light switch shaft retainer button, then pull shaft from switch.
3. Remove light switch ferrule nut from front of instrument panel.
4. Disconnect switch electrical connector, then remove switch from vehicle.
5. Reverse procedure to install.

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I have a feeling this will take care of the problem.

Let me know if you have any questions. If you do replace it, let me know if it takes care of the problem.

Take care,
Joe

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