Auxiliary lighting worked, then didn't with factory AUX switches... fuse? connection? help!

[Simann]

Threw on my ARB bumper and eBay special ARB'esq LED aux lights. (for $70 a pair, they work, bench tested them at my brothers before mounting them up, he's an electrical engineer with a shit load of testing equipment).

First tried to wire them up to the factory Fog harness, the canbus system didnt like that too much so instead of ordering relays and adding more jumble to the wiring, I decided to go the OE route and use the AUX switches my truck came with. I used AUX 3 switch since its a 15 amp circuit, should be plenty for two LED lights.

Wiring went easy, lights fired right up, good to go.
After a few minutes, I start my truck back up to move it back into garage to install the FOX steering damper and the new LED auxiliary lights no longer work. The AUX 3 switch amber light illuminates on the button when selected, I checked the SETTINGS and its all correct. Checked my wiring, wiggled connections, nothing.

I looked for a fuse circuit, found N4 is the AUX system fuse. But I figured if I blew a fuse the AUX switch button would not illuminate, right?

I've searched all over the place, can't really find anything like my situation. Should I have used the 40A circuit?

HELP

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[Simann]

Well, found the fuse diagram, relay K20 and fuse F103 (15 amp). F103 fuse is blown. Switched it with a new fuse, it blew after I turned ON the lights and turned them off....

 

[Rhinebeck01]

@Simann

Do you know what the amp draw is of those lights?

You would think 15 amp fused, Aux 3 or 4 would be aok for those lights.. Check for a short!

Only takes a second..... hook up those lights to either Aux 1 or 2 that are fusee at 40 amp and see if the fuse blows.. IF it does you have a short in the lights.

 

[Rhinebeck01]

@Simann

All the one's that I made bold are for your factory installed Aux switches:

F01 Spare
F02 Starter 40 Amp Green Cartridge
F03 IBS 5 Amp Tan Micro
F04 Fuel Pump MTR/FPCM 20 Amp Yellow Micro
F05 Security Gateway 5 Amp Tan Micro
F06 Spare
F07 LTR Cool Pump — If Equipped 15 Amp Blue Micro
F08 TCM-8HP CYGNUS 15 Amp Blue Micro
F09 Spare
F10 KIN/RF HUB/ESCL 15 Amp Blue Micro
F11 UCI Port (USB & AUX) 10 Amp Red Micro
F12 HIFI Ampliftier 25 Amp Clear Micro
F13 Spare
F14 Spare
F15 IPC/SWITCH BANK-HD ELEC 15 Amp Blue Micro
F16 Spare
F17 Spare
F18 AC CLUTCH 10 Amp Red Micro
F19 Spare
F20 CBC 1-INTERIOR LIGHTS 30 Amp Pink Cartridge
F21 REAR WIPER 20 Amp Yellow Micro
F22 ECM/PCM/MGU WAKE UP/PPU WAKE UP 10 Amp Red Micro
F23 PCM/ECM 10 Amp Red Micro
F24 Spare
F25 MOD_SBW 10 Amp Red Micro
F26 CBC 2-EXTERIOR LIGHTS #1 40 Amp Green Cartridge
F27 Front Wipers 30 Amp Pink Cartridge
F28 CBC 3-POWER LOCKS 40 Amp Green Cartridge
F29 CBC 4-EXTERIOR LIGHTS #2 40 Amp Green Cartridge
F30 Spare
F31 DIAGNOSTIC PORT 10 Amp Red Micro
F32 HVAC CTRL MOD/SCL/OCM/DPDM 10 Amp Red Micro
F33 PTS/IRCM/AIRBAG DISABLE LMPS 10 Amp Red Micro
F34 ESC/EHPS/SBCM WAKE UP 10 Amp Red Micro
F35 BRAKE VAC PMP — If Equipped 30 Amp Pink Cartridge
F36 TRLR TOW MOD — If Equipped 30 Amp Pink Cartridge
F37 TRLR TOW CONN 7W — If Equipped 30 Amp Pink Cartridge
F38 ECM 20 Amp Blue Cartridge
F39 Spare
F40 DTCM/AXLE LOCK FT_RR 15 Amp Blue Micro
F41 IC/SGW WAKE UP 15 Amp Blue Micro
F42 PCR CTRL FEED (ESS)/SPARE (BSG) — If Equipped 10 Amp Red Micro
F43 PWR OUTLET (CARGO) BATT 20 Amp Yellow Micro
F44 IRCAM HEATERS 10 Amp Red Micro
F45 PWR OUTLET (CARGO) IGN* 20 Amp Yellow Micro
F46 AUTO HDLP LVL MOD/LVL MTR/HDLP SW 10 Amp Red Micro
F47 Spare
F48 Spare
F49 ORC 10 Amp Red Micro
F50 HD ACC — If Equipped 10 Amp Red Micro
F51 DSRC/USB/ISRVM/CSGM 10 Amp Red Micro
F52 CIGAR LTR 20 Amp Yellow Micro
F53 Spare
F54 Spare
F55 Spare
F56 IN-CAR TEMP SENSOR 10 Amp Red Micro
F57 Frt Drvr Htd Seat 20 Amp Yellow Micro
F58 Frt Pass Htd Seat 20 Amp Yellow Micro
F59 Spare
F60 CSWM (HTD STR WHEEL) 15 Amp Blue Micro
F61 LBSS/RBSS 10 Amp Red Micro
F62 Spare
F63 ORC 10 Amp Red Micro
F64 Spare
F65 Spare
F66 HVAC BLOWER MTR FRT 40 Amp Green Cartridge
F67 Spare
F68 Spare
F69 MGU (BSG) — If Equipped 5 Amp Tan Micro
F70 INJ/IGN COIL (GAS)/GLO PLUG MOD (DSL) 25 Amp Clear Micro
F71 Spare
F72 HD ELEC ACC PKG — If Equipped 10 Amp Red Micro
F73 PWR TOP LT 20 Amp Blue Cartridge
F74 PWR TOP RT 20 Amp Blue Cartridge
F75 PPU-BPCM & APM (BSG) — If Equipped 10 Amp Red Micro
F76 ECM (GAS)/PCM (DSL) 20 Amp Yellow Micro
F77 HTD MIRRORS 10 Amp Red Micro
F78 COMP/INTRUSION/SIREN/INTRUSION SNSRS 10 Amp Red Micro
F79 SMART BAR CTRL MOD 20 Amp Yellow Micro
F80 PCM 15 Amp Blue Micro
F81 REAR DEFROSTER (EBL) 30 Amp Pink Cartridge
F82 FUEL HTR — If Equipped 30 Amp Pink Cartridge
F83 GLOW PLUG — If Equipped 60 Amp Yellow Cartridge
F84 UREA HTR CTRL UNIT — If Equipped 30 Amp Pink Cartridge
F85 PM SENSOR — If Equipped 10 Amp Red Micro
F86 BRAKE VAC PMP 2 — If Equipped 30 Amp Pink Cartridge
F87 SUPPLY/PURGING PMP — If Equipped 10 Amp Red Micro
F88 NOx SENSOR #1/ #2 — IF Equipped 20 Amp Blue Cartridge
F89 SCCM/CRUISE CTL/DTV 10 Amp Red Micro
F90 TRLR TOW PARK LMP — If Equipped 20 Amp Blue Cartridge
F91 HORN 20 Amp Yellow Micro
F92 HD ACCY #2 — If Equipped 40 Amp Green Cartridge
F93 HD ACCY #1 — If Equipped 40 Amp Green Cartridge
F94 TPM/CORAX 10 Amp Red Micro
F95 Spare
F96 PWR MIRROR SW 10 Amp Red Micro
F97 RADIO/TBM 20 Amp Yellow Micro
F98 SW BANK-HD ELEC/OFF ROAD 10 Amp Red Micro
F99 Spare
F100 ESC-ECU & VALVES 30 Amp Pink Cartridge
F101 DTCM 30 Amp Pink Cartridge
F102 DUAL USB PORT 15 Amp Blue Micro
F103 HD ACCY #3 — If Equipped 15 Amp Blue Micro
F104 PPU COOL PUMP — If Equipped 15 Amp Blue Micro
F105 ICS/HVAC 10 Amp Red Micro
F106 ESC-PUMP MTR 40 Amp Green Cartridge
F107 TRLR TOW STOP/TURN LT — If Equipped 20 Amp Yellow Micro
F108 HD ACCY #4 — If Equipped 15 Amp Blue Micro
F109 TRLR TOW STOP/TURN RT — If Equipped 20 Amp Yellow Micro
F110 POWER INVERTER 30 Amp Pink Cartridge
F111 TRLR TOW BACKUP — If Equipped 20 Amp Blue Cartridge

 

[Simann]

@Simann

Do you know what the amp draw is of those lights?

You would think 15 amp fused, Aux 3 or 4 would be aok for those lights.. Check for a short!

Only takes a second..... hook up those lights to either Aux 1 or 2 that are fusee at 40 amp and see if the fuse blows.. IF it does you have a short in the lights.

Yep, [Banned Site] had a good Fuse Box sticky too..
https://[Banned Site]/showthread.php/53079-FUSE-BOX-JL-Wrangler-QUICK-REFERENCE-CHART


Yep, exactly what I am about to do. These are big lights, I have to say I was a bit concerned on a 15 amp circuit.... They are 192 watts per light, so divide that by 12 volt system, thats around 16 amps...makes sense why a 15 amp fuse is blowing... why they would turn on a few times then after I turn them off then would not turn on again. That one extra amp draw may be the problem LOL

These are the lights just in case some of you are wondering...
https://www.ebay.com/itm/2X-9inch-192W-Red-LED-Round-Work-Light-Spot-Driving-HeadLight-offroad-Boat/124208265685?ssPageName=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649

 

[Rhinebeck01]

@Simann

Those lights of yours are drawing 16 amps or 16,000 milliamps. I did the math....

This is why you are blowing the 15 amp fuse of Aux 3.

 

[Simann]

Yep, one damn amp.

 

[Rhinebeck01]

@Simann

Remember, when hooked to 40amp fused, Aux 1 or 2, the lights are really not fuse protected.
They are not real expensive lights .... so....

Is there an inline fuse on the harness for the lights... with say a 20 amp fuse..

No big deal to hook those lights, up to Aux 1 or 2 as the JL's wiring is safe/protected with 40 amp fuse, but again the lights are not protected... IF you want the lights protected put an inline fuse on your pos. wire, with say a 20 amp fuse in it.

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