4L60-E Neutral Position Switch Wiring
Thread Starter
Staging Lane
Joined: Oct 2007
Posts: 58
Likes: 0
From: Mill Creek/Lynnwood, WA
4L60-E Neutral Position Switch Wiring I have a 2003 Tahoe 4L60-E Trans. There are 10 wires coming off the NSS on this trans.
1. BLK/W to pin C1-32 (PCM)
2. WHT to pin C1-34 (PCM)
3. YEL to pin C1-72 (PCM)
4. GRY to pin C2-62 (PCM)
5. BLK to GRD
6/7. (2) PNK's to Under hood fuse block
8. GRY to pin A11 (Trailer Backup Lamp Supply Voltage - under hood fuse block)
9. LT GRN to pin D3 (Park Neutral Position Switch Park Signal - under hood fuse block)
10. DK GRN to pin F11 (Park/Neutral Start Swicth Signal - under hood fuse block)
Trying to build a stand alone harness from this harness and need to know where the last 3 wires would come from? I have the underhood fuse block, but don't know what the source is for those last 3 wires, what do I tie them into?
Any help is appreciated.
1. BLK/W to pin C1-32 (PCM)
2. WHT to pin C1-34 (PCM)
3. YEL to pin C1-72 (PCM)
4. GRY to pin C2-62 (PCM)
5. BLK to GRD
6/7. (2) PNK's to Under hood fuse block
8. GRY to pin A11 (Trailer Backup Lamp Supply Voltage - under hood fuse block)
9. LT GRN to pin D3 (Park Neutral Position Switch Park Signal - under hood fuse block)
10. DK GRN to pin F11 (Park/Neutral Start Swicth Signal - under hood fuse block)
Trying to build a stand alone harness from this harness and need to know where the last 3 wires would come from? I have the underhood fuse block, but don't know what the source is for those last 3 wires, what do I tie them into?
Any help is appreciated.
Are there 2 plugs on the switch? Not sure if you numbered them 1-10 or if the plug is? They should be letters. But anyway, your 8 I think woukld be the power for the back upn lights, but it's a pink wire. the 9 could be the shift interlock. The 10 is the wire that goes from the NSS to the starter relay.
Thread Starter
Staging Lane
Joined: Oct 2007
Posts: 58
Likes: 0
From: Mill Creek/Lynnwood, WA
It is the correct switch. Came on the motor/trans I got out of the Tahoe.
Yes, there are 2 plugs. I didn't number them in any order as to which plug they go to. I was going more by color and where the wires ran. The ones in question are between the trans switch and underhood fuse box.
The descriptions below are what I found from an underhood diagram, but they didn't give any more information as to where they come or go to.
8. GRY to pin A11 (Trailer Backup Lamp Supply Voltage - under hood fuse block)
9. LT GRN to pin D3 (Park Neutral Position Switch Park Signal - under hood fuse block)
10. DK GRN to pin F11 (Park/Neutral Start Swicth Signal - under hood fuse block)
My No.8 must be the backup light. Does it go to the backup lights or a relay?
My No.9 - where does the shift interlock come or go to?
My No.10 - which terminal on the starter relay would it go to?
Yes, there are 2 plugs. I didn't number them in any order as to which plug they go to. I was going more by color and where the wires ran. The ones in question are between the trans switch and underhood fuse box.
The descriptions below are what I found from an underhood diagram, but they didn't give any more information as to where they come or go to.
8. GRY to pin A11 (Trailer Backup Lamp Supply Voltage - under hood fuse block)
9. LT GRN to pin D3 (Park Neutral Position Switch Park Signal - under hood fuse block)
10. DK GRN to pin F11 (Park/Neutral Start Swicth Signal - under hood fuse block)
My No.8 must be the backup light. Does it go to the backup lights or a relay?
My No.9 - where does the shift interlock come or go to?
My No.10 - which terminal on the starter relay would it go to?
