F1 and f6 button does nothing? - 2003 Cadillac CTS

I would suspect the timing chain and sprockets.



copy and paste
https://moparforums.com/forums/f6/i-hope-timing-hasnt-slipped-318-a-2536/

http://www.homedepot.com/catalog/pdfimages/f1/f1e0e065-2a30-4764-9f2b-1dd504e4d555.pdf

Check the troubleshooting section

What are you talking about fuse's ?

Press F1 and F6 on the radio at the same time and hold down. When you release, all the lights will come on, then a prompt to "clear code" - push the select button (round knob to the right of the radio). This will clear the code. If the engine light does not turn off, unhook battery cables, clean them, then re attach. This has happened to my CTS a few times.

if you hold F1 and F6 in on your radio it will give you the option to erase all codes

Check for power to your brakelight switch this located at the top of the brake pedal. I see alot of these go bad.

the easiest thing to do is take it to an auto parts store and use their scanner on it. I think maybe you need to have the ignition switch turned to accessories when you push F1 and F6. Hope this helps tim

The fuse for cigarette lighters is number 9 = F9 (20A).
The fuse box / relay plate (fascia 1) is located inside the car under rear left seat 1 for Right Hand Drive (RHD) cars.
The fuse box (fascia 1) layout is:
1. F1 (10A) = Rear fog lamps
2. F2 (10A) = Heated mirrors, panel lamps rheostat
3. F3 (20A) = RH seat motors
4. F4 (20A) = LH seat motors
5. F5 (10A) = Instruments
6. F6 (5A) = Seat control modules, low power door switches, mirror motors
7. F7 (30A) = ABS pump
8. F8 (10A) = LH indicators / repeater lamps
9. F9 (20A) = Cigarette lighters
10. F10 (5A) = Cruise control
11. F11 (20A) = LH A/C blower motor
12. F12 (5A) = Instruments
13. F13 (15A) = Steering column adjustment
14. F14 (10A) = Automatic Transmission (AT) ignition supply
15. F15 (30A) = LH electric windows
16. F16 (5A) = ABS ignition supply
17. F17 (10A) = Electrochromic mirror, reverse lamps
18. F18 (10A) = A/C supply


Please rate my response. Thanks!

323 (BF), 1600 F6
Valve clearance - inlet: 0.30 h mm (hot)
Valve clearance - exhaust: 0.30 h mm (hot)
Compression pressure: 14.5 bar

hope this helps.

sometimes mileage sets off the light just so dealers can get you back in the shop for some of your money,
if you have a autozone store where you are they will check engine codes for free,then you can decide what you want to do.