Tremor Aux Switch Panel - No power

[Mostly Harmless]

I'm attempting to hook up LEDs to AUX switch 6 but can't get power out of the lead (yellow/orange). Car on/off, switch on or off, I can't get 12v out of the wire. I tried the blue/orange wire from switch 5 and the same thing. I hope I'm just doing something. Any suggestions?

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[HarryManback]

I believe the truck has to actually be running for those to be enabled, not just turned on. Mine were as simple as you expect, the switches provide 12V to the wires in the engine bay, nothing extra needed. Maybe double check that your fuses are seated properly?

I'm currently using switches 3, 4, and 5 and they were all on the wires I expected them to be.

 

[Mostly Harmless]

I believe the truck has to actually be running for those to be enabled, not just turned on. Mine were as simple as you expect, the switches provide 12V to the wires in the engine bay, nothing extra needed. Maybe double check that your fuses are seated properly?

I'm currently using switches 3, 4, and 5 and they were all on the wires I expected them to be.

Got it working, wiggling the relays solved the issue, thanks!

 

[Rebel13]

Got it working, wiggling the relays solved the issue, thanks!

Hey everyone. I have a 22 tremor as well and just tried wiring back up lights under the bumper to the switches too and absolutely no power to the wires coming out of the auxiliary fuse box. Tested for power at the fuses and relays and all good. However the relays 2 small posts aren't getting any current at all. So is there a harness plug somewhere between the switches and the input side of the fuse box that might be disconnected/forgotten from the factory? Only thing that makes sense to me due to none of the leads have power yet all else checks out

 

[JDowns]

Hey everyone. I have a 22 tremor as well and just tried wiring back up lights under the bumper to the switches too and absolutely no power to the wires coming out of the auxiliary fuse box. Tested for power at the fuses and relays and all good. However the relays 2 small posts aren't getting any current at all. So is there a harness plug somewhere between the switches and the input side of the fuse box that might be disconnected/forgotten from the factory? Only thing that makes sense to me due to none of the leads have power yet all else checks out

This came up for another Tremor owner. If you look at your manual there is a fuse panel underneath the engine compartment fuse box. Make sure the aux panel fuse is installed from the factory.

 

[Rebel13]

This came up for another Tremor owner. If you look at your manual there is a fuse panel underneath the engine compartment fuse box. Make sure the aux panel fuse is installed from the factory.

Wouldn't it have to be installed to even have power to the auxiliary fuse box at all? Cause when I tested all the fuses and relays in that box all had juice but nothing from the leads. So thinking something isn't connected to be all leads or switches are all bad. Not sure.

 

[JDowns]

Do the internal switches light up? Low power is sent from there to each relay. They should be blue (off) and amber (on).

With the ignition in the "on" position and testing each switch you should get power on and off at each fuse. Check blown fuses. Check bad relay.

If power activates and deactivates at each fuse then check the leads coming out of the bottom of the aux fuse box and make sure they are seated well in each fuse position.

If you have power at the relay for the switches but no main power then check the main fuse under the engine compartment fuse panel.

 

[Rebel13]

Power is on at the fuses and switches light up but not letting any power at the small ports for the relays and none of the wires coming out of fuse box have power. Tested all of them. Called the dealer and he's saying some kind of disconnect from dash to the relays.

 

[jdamtb918]

Power is on at the fuses and switches light up but not letting any power at the small ports for the relays and none of the wires coming out of fuse box have power. Tested all of them. Called the dealer and he's saying some kind of disconnect from dash to the relays.

What ended up being the problem? Im in the same boat right now trying to get power to my ditch lights

 

[airline tech]

What ended up being the problem? Im in the same boat right now trying to get power to my ditch lights

What specific switch or switches / relays are you using for power?
If you have verified fuses are powered and used the Owners Manual wiring diagram to hook up (Wire Color Chart) then most likely its not getting the (Switch) power to the relay - if switches are lighting up (powered separate circuit) if switches are not lighting up (switches themselves) then check the BCM (Fuse #20) as it powers the switches.
Note: This is not the background illumination
Pull the relay you are trying to use and with switch (ON) check for power @ Relay (Contact #1)
to ensure the switch circuit is good.

Note: Fused Power - Relay Layout - Diagram
Aux Switch # - Matches Relay # for control of the relay (Coil Side)
Pay attention to Fuse Control as depicted.




Note:
C9120 = Main Connector for the (Aux Switch Box)
C9805 = Inline Connector (Jumper Between (Main Harness & Aux Switch Box) Harness # 14A104
C237 = Inline Connector (Drivers KIck Panel)
C146 = I believe is located within a short distance of the (Relay Box) and should not be hard to locate - I do not have a (Location Pic)

So 4 ea connectors between the (Switch Panel & Relay Box)

Main Power Feed to the Relay Box (Battery Cable) feeds down below the BJB to a High Current Junction Box that has a (100 Amp) fuse, so if all fuses are not powered this is what to check.

So:
Contact #1 = Switch Input Power to Coil
Contact #2 = Coil Ground
This current flow closes the relay when switch is (ON)

Contact #3 = Fused Power Feed (Input)
Contact #5 = Output Power to desired source
So a quick check for power would be Check Contact #3 with Key On, this will show power getting to the relay

Also Note: Sometimes relays get lazy and may require a simple (Light - Tap) or a pull & reseat to get them functioning.

Note: C237 is a multi inline connector, If you only have a single switch issue I would check here otherwise this connection should be good.

C9120 -C9805 & C146 are specific to the (Aux Switches & Relay Box) so one of these connectors may not be connected (If you have never used the Aux Switches) and none of them are working.

Location for C9120 & C9805 in the dash

Edit: For Reference - I corrected the diagram to show correct fuse power feeds

 

[jdamtb918]

What specific switch or switches / relays are you using for power?
If you have verified fuses are powered and used the Owners Manual wiring diagram to hook up (Wire Color Chart) then most likely its not getting the (Switch) power to the relay - if switches are lighting up (powered separate circuit) if switches are not lighting up (switches themselves) then check the BCM (Fuse #20) as it powers the switches.
Note: This is not the background illumination
Pull the relay you are trying to use and with switch (ON) check for power @ Relay (Contact #1)
to ensure the switch circuit is good.

Note: Fused Power - Relay Layout - Diagram
Aux Switch # - Matches Relay # for control of the relay (Coil Side)
Pay attention to Fuse Control as depicted.

View attachment 232994


Note:
C9120 = Main Connector for the (Aux Switch Box)
C9805 = Inline Connector (Jumper Between (Main Harness & Aux Switch Box) Harness # 14A104
C237 = Inline Connector (Drivers KIck Panel)
C146 = I believe is located within a short distance of the (Relay Box) and should not be hard to locate - I do not have a (Location Pic)

So 4 ea connectors between the (Switch Panel & Relay Box)

Main Power Feed to the Relay Box (Battery Cable) feeds down below the BJB to a High Current Junction Box that has a (100 Amp) fuse, so if all fuses are not powered this is what to check.

So:
Contact #1 = Switch Input Power to Coil
Contact #2 = Coil Ground
This current flow closes the relay when switch is (ON)

Contact #3 = Fused Power Feed (Input)
Contact #5 = Output Power to desired source
So a quick check for power would be Check Contact #3 with Key On, this will show power getting to the relay

Also Note: Sometimes relays get lazy and may require a simple (Light - Tap) or a pull & reseat to get them functioning.

Note: C237 is a multi inline connector, If you only have a single switch issue I would check here otherwise this connection should be good.

C9120 -C9805 & C146 are specific to the (Aux Switches & Relay Box) so one of these connectors may not be connected (If you have never used the Aux Switches) and none of them are working.

Location for C9120 & C9805 in the dash

I appreciate your help and troubleshooting guide! I confirmed last night the Aux6 at the switch does light up and I confirmed I’m on the correct wire at the fuse box. (Yellow w/ red stripe). All I’ve done so far is put my meter on the DT connector I’m using to connect light’s harness to. Checking for DC power I get 0.

Edit: I noticed in the pic of aux fuse box you have 12b which going to Aux5 but in owners manual it’s going to Aux6..? Am I reading that right?

 

[jdamtb918]

Problem Solved. Issue wasn’t with auxiliary switches but with the harness I was using. Pretty sure I don’t know how to crimp but connectors. I took the harness out and hooked light up directly to Aux6 and bingo. Light came on! Thanks again for the helpful information!

 

[airline tech]

I appreciate your help and troubleshooting guide! I confirmed last night the Aux6 at the switch does light up and I confirmed I’m on the correct wire at the fuse box. (Yellow w/ red stripe). All I’ve done so far is put my meter on the DT connector I’m using to connect light’s harness to. Checking for DC power I get 0.

Edit: I noticed in the pic of aux fuse box you have 12b which going to Aux5 but in owners manual it’s going to Aux6..? Am I reading that right?

Good catch - This is where sometimes the wiring diagrams can mislead, the wiring diagram that I used for that shows - 12A - Feeding Relay #6 & 12B - Feeding Relay #5, I remember thinking that it was odd that A and B to be opposite of normal.


However another wiring diagram and Owner's Manual show:
!2A - Feeds Relay #5 and 12B - Feeds Relay #6
So I need to correct that - as I can deduce that this one is correct,
Thank You for pointing that out and I will correct it.

 

[airline tech]

Cool, good find.
For Reference - I Edited my post and corrected the Fuse Power Feeds, thanks for noting the discrepancy.

 

[jdamtb918]

Cool, good find.
For Reference - I Edited my post and corrected the Fuse Power Feeds, thanks for noting the discrepancy.

ok so I took another stab at getting the lights powered yesterday evening. I confirmed passenger side light had power and was coming on with switch6. I have a way too short Tractor Supply harness that enables 2 lights to be ran to switch. I guess it’s called a 2-way splitter? So I hooked up 2nd light and had to make my own harness extension to reach all the way back to auxiliary box using m/f DT-connectors on male/female quick connectors. When I tied both lights together and tried to turn them on I blew a fuse (5a) I moved the lights to the 10a switch3 and blew that one immediately as well. Where are you guys landing the negative side? Here’s some pics if you see anything wrong lemme know. Thanks!

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