Brake lights dont work. Turn signals and tail lights do. What does LPS as in Stop LPS fuse mean? I replaced this fuse within glove compartment but it still isn't working

Check fuse.
Check if center light works.
Check for power at light sockets.
Check brake light switch.
Manipulate the turn signal lever.


- To check the brake light fuse, open the passenger door and remove the fuse panel cover that is located around the corner from the glove compartment. On the back side of the fuse panel cover there should be a fuse location chart. The brake light fuse is #23, located in the socket that is dead-center among the mini fuses. I believe it is supposed to be a 15A fuse. Confirm the condition of the brake light fuse and replace if necessary. If the fuse fails again, determine and correct the cause.
- Also, see if the center brake light is working properly. If it is, then the brake light switch is working. If the center light is not working, the brake light switch is suspect. That switch is a spring-loaded plunger switch that is of the "normally closed" variety. In this application the switch is usually held open by the brake pedal arm, except when he pedal is depressed. Then the spring within the switch holds the contacts closed so that the brake lights will operate.
That switch is located under the instrument panel. Look for a push-button switch that is contacting the brake pedal lever. If the car has cruise control there will be two switches, one above the other. I believe that the lower of the two is the brake light switch.
- With the brake pedal depressed, see if you have power and ground at the brake light sockets. One good way to confirm that is to remove a brake light bulb and connect a 12v. test light across the contacts in the socket.
- An operating center brake light combined with no power to the 12v+ terminals at the left and right brake light sockets could indicate a defect within the turn signal switch. If you get to the point where you suspect a defect there, try applying rearward pressure on the turn signal lever and see if the brake lights work then. If that procedure confirms that the defect is within the turn signal switch, you can replace the turn signal switch. Or you could try my trick which cost me less than a dollar and has worked for years.
See attached photo.

Spacer (piece of rubber tubing?) is used to apply rearward pressure on turn signal lever. I have not disassembled the switch assembly, but evidence suggests that electrical contacts inside the switch depend on the mechanism being positioned properly. If the internal positioning device failed (perhaps the lever was pushed forward) then an external device can be made to hold the lever and switches in proper location.
If you attempt this repair, consider applying some lubricant as deemed necessary.
Good luck.

you got a wiring issue that keeps shorting out fuses find that and that should take care of everything else

check for power at the wires going intop the tail lights, real common that the circuit board is bad, but unlikely both at the same time. The tag, tail lights and brakes are 2 different systems. Do the turn signals work normally? if so the wiring from the turn signal switch to the brake lights is GOOD. the stop light switch had\s a ORANGE wire that should have 12V if not ck STOP LPS fuse, when brake pedal is depressed, the WHITE wire is 12V (at the stop light switch) if that is OK, the turn signal switch COULD be bad. The wiring harness plug is near the back left under the tailgate, see if that is disconnected?

The Malibu's tail light fuse is located within the driver's side interior fuse box.

Look on the bottom-left side of the interior fuse compartment; there is a fuse labeled "Stp Lps" (stands for Stop Lamps). Grasp the fuse with the fuse puller; pull it straight out. good-luck !!

IF THE TURN SIGNALS STILL WORK IN THE FRONT, THAT MEANS THE FUSE & THE FLASHER ARE OK. IF THE SIGNALS DON'T WORK AT ALL CHECK TURN SIGNAL FUSE & STOP / BRAKE FUSE. ARE YOU SURE THE CORRECT BULBS ARE BEING USED?

check the fuse box in the engine compartment. There is a 15 amp fuse there for PARK LPS and there is also a relay. If you want to check the lights switch, you can interrogate the relay socket.

Please see my tip at http://www.fixya.com/cars/r6022358-relay_check . Please let me know if you have questions.

I have always had a place in my heart for the Olds Cutlass. I own a '90 Olds Cutlass Calais--WITH the fuse box COVER. I went out to the car and removed the cover and have it next to me so that I can type the EXACT fuse order as they appear on the inside cover.There are 2 col. When I've finished the l/h side, I'll make a line to indicate the start of the r/h side. I will also put the Circuit on the left & fuse on the right. If you are ready, HERE WE GO:
-----CIRCUIT----------------------------------FUSE------
Air Cond/Heater HTR A/C
Audio Alarm CTSY LPS/GAGES
Driver Info System CLK-CIG/GAGES
Cigar. Lighter CLK-CIG
Clock (Radio) CLK-CIG
Cruise Control RADIO (LD2/LG7)
ECM RLYS (L68)
Eng Controls ECM RLYS
Eng Cooling Fan HTR A/C
Fuel Injection F/P INJ
Fuel Pump F/P INJ
Horn CLK-CIG
Ignition IGN
Instrumentation GAGES
Light-Lic Plate TAIL LPS
Light-Underhood TAIL LPS
Light-Glove Box CLK-CIG
Lights-Backup TURN B/U
______END OF 1ST HALF FUSE DIAGRAM______
-----CIRCUIT-----------------------------------FUSE-----
Lights-Brake STOP HAZ
Lights-Courtesy/Intr CTSY LPS
Lights-Hazard Warning STOP HAZ
Lights-Instrumentation INST LPS
Lights-Park/Side Mkr TAIL LPS
Lights-Tail TAIL LPS
Lights-Turn Signal TURN B/U
Power Antenna CTSY LPS
Power Door Locks CLK-CIG
PWR (CB)
Power Seats PWR (CB)
Power Windows CLK-CIG
PWR WDO (CB)
Radio RADIO
Rear Defogger GAGES
PWR (CB)
Torque Conv Clutch ECM RLYS
Trunk Release HTR A/C
Wiper/Washer WIPER
----------------END OF FUSE DIAGRAM----------------
Did my Best. Let me know if you need anything else. I have shop manual for this Yr, Make & Model. Best of Road to You. How'd I do? Have a Great Day!

follow all power source to the fuse panel over time road vibration
or even rust can this problem check to see if you have additional
fuses under your hush panel replace o one more thing checto see if your ignition module has good connection its by your cars fire wall.