Bought, wrecked, rebuilding a 2009 LMM
- Thread starter malibu795
- Start date
WT with cruise, basic radio or one up from basic has speakers in A pillar, manual HVAC
Looks like 1444pk circuit is power and runs through clock spring, the CC on/off switch won't light up.. verify horn tomorrow... Might be grabbing a clock spring
Looks like 1444pk circuit is power and runs through clock spring, the CC on/off switch won't light up.. verify horn tomorrow... Might be grabbing a clock spring
Only lights right now are traction control, low tire and air bag
1a auto has a neat video how to do it.. I'm sure something will fight me lol
Supposedly this is it. Run through the deal and verify part number, most places won't recognize anything other that a 1500
1a auto has a neat video how to do it.. I'm sure something will fight me lol
Supposedly this is it. Run through the deal and verify part number, most places won't recognize anything other that a 1500
The traction control, which is probably on because of the tire could also be blocking it.
I forget, does the Air Bag module need to be reset for the Airbag or does it need a sensor? did you ever get a code?
I forget, does the Air Bag module need to be reset for the Airbag or does it need a sensor? did you ever get a code?
No, 1444pk just supplies 12V power to the on/off button which is a momentary contact switch. The power tickles the BCM through the resistor and senses the high voltage level on 1884gy . The BCM now closes the GND for the LED (1758). There is most likely steady lower voltage power coming from the steering wheel schematic connection to energize the LED and the other CC buttons. Each button changes the sensed voltage on 1884 through the resistor array.
The CC on/off button light doesn't turn on. If we're reading the schematic the same way, the rest doesn't matter but good to know, if the on/off button see no power or ground thus doesn't turn on.
The way I read the schematic is circuit 1444 coming up with the pink wire supplies the 12 volts. This runs through the clockspring. It then supplies the resistors network switch circuit for the cruise control. Then through the 1884 gray wire it returns to the BCM with a voltage drop detection resistor to be able to detect which switch, and thus which resistor was dropped across the circuit
There is an option for a secondary circuit depending on your options, that follows the same logic but not drawn
Also not drawn out in that page is the LED supply. But from my recollection, it is supplied via the dimmer circuit. So would have another clockspring line. It's possible they are trying to indicate, but not well, that the LEDs get their power via the same 1444 pink 12v line and it's the 7158 green white line that returns it to ground. And maybe they employ a PWM on the ground side to adjust brightness. But they normally show a mosfet on the ground side when a PWM or similar control is used
My understanding is that there are several different clocksprings with varying amounts of lines in them depending on the number of options. No steering wheel controls would just have the two or three lines for the air bag. Then additional number for ones that have radio and cruise on the steering. They will share the same 12v pink line.
There is an option for a secondary circuit depending on your options, that follows the same logic but not drawn
Also not drawn out in that page is the LED supply. But from my recollection, it is supplied via the dimmer circuit. So would have another clockspring line. It's possible they are trying to indicate, but not well, that the LEDs get their power via the same 1444 pink 12v line and it's the 7158 green white line that returns it to ground. And maybe they employ a PWM on the ground side to adjust brightness. But they normally show a mosfet on the ground side when a PWM or similar control is used
My understanding is that there are several different clocksprings with varying amounts of lines in them depending on the number of options. No steering wheel controls would just have the two or three lines for the air bag. Then additional number for ones that have radio and cruise on the steering. They will share the same 12v pink line.
Basically how I read it. No power, no turn on.
Also no "horn relay" in the engine fuse box. The horn itself does work, but I have only one, on the DS, PS plug has a OEM block plug in it, fill that spot at a later date
Did have dealer run the vin, the xxxxx6966 part number is correct for the truck, and best they can do is $238, and have it next business day.
Getting the spare tire frame jumped the line of getting repaired parts in order of importance.. it has 18 rivets holding it in, and ties into rear spring shackle mounts. Need to get some flanged lock nuts and grade 8 bolts.
Clock spring replacement is going to wait till shocks, tie-rods and alignment get done. I think the later stuff is more important than the clock spring replacement
Picked up some 4257NA bulbs to replace the turn signal/parking lights
Also no "horn relay" in the engine fuse box. The horn itself does work, but I have only one, on the DS, PS plug has a OEM block plug in it, fill that spot at a later date
Did have dealer run the vin, the xxxxx6966 part number is correct for the truck, and best they can do is $238, and have it next business day.
Getting the spare tire frame jumped the line of getting repaired parts in order of importance.. it has 18 rivets holding it in, and ties into rear spring shackle mounts. Need to get some flanged lock nuts and grade 8 bolts.
Clock spring replacement is going to wait till shocks, tie-rods and alignment get done. I think the later stuff is more important than the clock spring replacement
Picked up some 4257NA bulbs to replace the turn signal/parking lights
