6.0l wiring question

[Codys87]

I'm wiring up my 6.0 and trying to figure out what I need on the harness and what I can do without. I'm running a 4L60E and I'm customizing a factory harness. I was wondering if anyone knew if I had to use the gear selector sensor (I guess thats what it is!) on the side of the transmission where the shift linkage mounts. Also if anyone has done this, do you know which sensors and pins the PCM can live without? Thanks

[Cherub]

yea the 4l60 uses the TCM (trans control module) without it no shifty.

[Codys87]

Thanks for the heads up! Did you do your own wiring or use a pre-made harness?

[glock35ipsc]

This is what is left on mine after stripping out the unneeded stuff (2006 5.3/4L60E):

BARE WIRES:

To tach
To fuel pump relay control
To brake light switch, cruise
To brake switch, for TCC
VSS, to speedo
To MIL light

3 Red wires - 12v key-on
1 Pink wire - 12v battery
1 Purple wire - To starter solenoid

CONNECTORS:

Electric fans
TAC module
Wires (3) to cruise
DS coil packs
DS injectors
Alternator
Coolant temp sensor (front of left head, for PCM)
Ground
Starter solenoid
Crank sensor
Oil level switch (in oil pan)
MAP sensor
Passenger side O2 sensor, front
MAF
PS coil pack
Ground
PS Injectors
Throttle body
Knock sensor harness
Oil PSI switch (behind intake manifold, for PCM)
Cam sensor
Ground
Driver side O2 sensor, front
Transmission, drivers side
Transmission, VSS, tailhousing
Transmission, passenger side

[Codys87]

Thanks!

Just curious but the "transmission, drivers side" is the park/neutral safety switch correct? And if so does yours have 1 plug or 2 on it?

[glock35ipsc]

Not sure on it's exact title, but mine has one plug on the drivers side to the module that surrounds the shift linkage.

I think it has something to do with telling the PCM what gear it's in too.

[Codys87]

Ok thanks! I've got an extra plug and was trying to find out where the other one went because the wiring diagram was kind of vague.

[glock35ipsc]

Since I just plugged it in tonight, I can tell you that my drivers front O2 sensor wires come out right next to the one that goes to the drivers side of the tranny. The O2 connector is a square shaped 4-pin.

[Codys87]

I have a black connector with about 6 pins in it. My problem is that I have already taken all the looms and tape off the original harness and I'm just assuming thats where it came from because the wires are about the same length as the neutral safety switch and I don't have anything to plug it into!!!

[glock35ipsc]

Cody - I was just looking over some of my diagrams, and I see there is a 6-pin plug for the tranny that is the "Park/Neutral Switch". Keep in mind, this is for a 4L60E, but they might be the same.

This one lists the colors and functions as:

Looking at the end of the plug, with the latch on top:
(4 across the top, 3 across the bottom)

A B C D
G F E

A Not used
B Not used
C Not used
D Ground (probably black)
E Park Signal (Green)
F Park/Neutral Signal (Yellow)

Hope this helps.

[Codys87]

And its a black plug right? I'm running a built 4L60e behind the 6.0 so thats what I'm looking for, I'm sure. Thanks. Did you unhook your factory park/neutral safety switch in the column or do you have it wired up and both are used?

[glock35ipsc]

I don't have that particular plug on my harness, at least I don't have one that looks like the one on my diagram.

I never thought of that, both are used right now. I suppose I could disconnect the truck's switch.

[ortega]

hey whats up. do you guys know where the crank position sensor is? either i im not looking in the right place or i just dont see it. im looking for it right under the crank pulley, is that where its supposed to be. its an 05 5.3

[glock35ipsc]

Behind the starter, and slightly above it.

[Codys87]

yeah its kind of hard to see if you have the starter on.

[Codys87]

Originally Posted by glock35ipsc

I don't have that particular plug on my harness, at least I don't have one that looks like the one on my diagram.

I never thought of that, both are used right now. I suppose I could disconnect the truck's switch.

I was just wondering. Thanks

[ortega]

cool tahnks, i didnt really know what each sensor looked like but i found them by the wire colors from the diagram, i wanted to find all the sensors before i took the harness off