T/C lock-up switch. whitch wires, relay?

[Summit]

T/C lock-up switch. what wires, relay?

wamt to put a lock up switch on my truck but can someone let me know witch ones (colors) for sure and which relay? bought the stuff to do it just dont want to mess it up.



TIA,, AL

 

[cerberusiam]

Its pin #7 YL\LB on my 05.

 

[Summit]

ok , i tapped pin #7 wire to power side of switch. took ground from switch to battery. took out relay and jumped 30-87 ( top right to bottom left). now i get codes,,,





P0882 TCM power low





what did i do wrong?? i havent driven the truck yet figuring i didnt do something right or are these codes normal for this?

 

[TCDiesel]

ok , i tapped pin #7 wire to power side of switch. took ground from switch to battery. took out relay and jumped 30-87 ( top right to bottom left). now i get codes,,,





P0882 TCM power low





what did i do wrong?? i havent driven the truck yet figuring i didnt do something right or are these codes normal for this?

The hassle Just is not worth it, Buy a Lockup Module,You can Smoke the TCM easily.

 

[p-Bar]

The hassle Just is not worth it, Buy a Lockup Module,You can Smoke the TCM easily.

Why would you want to start splicing wires ect? Twest is correct and they are plug n' play. Which one do you reccommend?

 

[cerberusiam]

ok , i tapped pin #7 wire to power side of switch. took ground from switch to battery. took out relay and jumped 30-87 ( top right to bottom left). now i get codes,,,





P0882 TCM power low





what did i do wrong?? i havent driven the truck yet figuring i didnt do something right or are these codes normal for this?

It supposed to be abe to be done without jumping the relay, which is causing the codes. On the ground side of the switch wire inline a 33 ohm 2% resistor and put the relay back like stock. This is supposedtoworkon 04. 5 - 05 but I have not had time to test it.

 

[Summit]

i havent tried it with the relay in place. it doesent lockup with the switch, it shifts just like stock? i just wanted it for dyno runs.

 

[Summit]

put the relay back in and dont have any codes now.

but now i have a mystery switch,,, its a mystery as to what it does,,, nothing.

 

[cerberusiam]

Pulling the relay and starting without it would have put the trans into limp mode. Not sure if just putting relay back in would reinitialize it or there are other steps to take. Manual calls for clearing the DTC before testing.



You probably need to pull the codes that exist in the ECU now and see if it generating any. Not all will turn on the MIL light. DO NOT engage the switch directly to ground without the resistor as you may burn a circuit out of the ECU.

 

[Summit]

i have the tri-dog so i can see all codes,,, the 04's need to tap the pcm connector wire, i'll figure it out tommorrow.

 

[CZCAPRI]

On mine I wired two 20 ohm in series withe the ground, ground wire to a 20 ohm resistor wired to another 20 ohm resistor then to chassis ground. With it wired like that you can install the relay and get no codes. I have had mine like this for about 7 months with no problems and its used daily.