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Discussion Starter #1
I Require the Wiring Harness Pin Out Connections from 2001 Cadillac Seville STS T460E Transmission Location and Wiring Diagram of Transmission; Neutral Safety Switch is internally mounted inside the T460E Transmission and causing an Intermittent NO Start No Crank situation, until I jiggle the Gated Transmission Selector many times; I would like to BYPASS the Neutral Safety Switch, Thanks in advance.
 

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2002.5 F55 CORSA STS, 2014 Explorer XLT FWD
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Wrong transmission. Our cars have the 4T80E unit. Your NSS is inside the IMS (#942) and cannot be "bypassed". The harness main connector is down low under the transmission case, near the exhaust crossunder pipe.

4T80E solenoids and sensors.gif
 

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Discussion Starter #4
Thank you Guys for the information regarding Transmission Type 4T80E versus 4T60E; Is 942 Internal Mode Switch (IMS) where the Neutral Safety Switch (NSS) resides?
 

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2001 eldorado,2008 DTS,2005 XLR, '96 eldo,'95 eldo,' 89 eldo,'78 eldo,'11CTS-V
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If the PRNDL switch is inside the tranny, how is it activated?
 

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2002.5 F55 CORSA STS, 2014 Explorer XLT FWD
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...... activated by the shift cable, ball socket, and quadrant/operating shaft on top of the transmission case. just at the firewall.

On a 2000 and later 4T80E/Northstar look at the area just rearward of the lower throttlebody.
 

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Discussion Starter #9
The Neutral Safety Switch DOES NOT EXIST on the Top of the Transmission where the Transmission Selector Shift cable from firewall mounts to the Transmission, I have see others in the junk yard (Pre-2001 Models Deville / Seville) where the Neutral Safety Switch and Gear Selector is mounted to a Square Shaft Protruding vertically out of the Transmission with an electrical connector Module (about 5"-6" Flat) mounted Horizontally. A local Transmission shop thought the change to an Internally mounted NSS occurred in late 2000 - 2001 model years, can anyone Confirm?
 

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2002.5 F55 CORSA STS, 2014 Explorer XLT FWD
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The transmission shop is correct. The separate NSS disappeared in 2000. My 2002 STS (4T80E) has only a quadrant and cable ball socket on top of the long shaft that goes into the transmission case and down to the lower valve body and IMS. See Post #3.

It's shown in RockAuto, Electrical Switch and Relay, 2000 - 2005 FWD Northstar 4T80E cars.

IMS 4T80E.jpg


The earlier NSS assembly is also under Switch and Relay (1999 and earlier FWD Northstar cars)
 

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Discussion Starter #11
The transmission shop is correct. The separate NSS disappeared in 2000. My 2002 STS (4T80E) has only a quadrant and cable ball socket on top of the long shaft that goes into the transmission case and down to the lower valve body and IMS. See Post #3.

It's shown in RockAuto, Electrical Switch and Relay, 2000 - 2005 FWD Northstar 4T80E cars.

View attachment 575664

The earlier NSS assembly is also under Switch and Relay (1999 and earlier FWD Northstar cars)
Thank you for the Confirmation and Verification of NSS, you are Extremely Knowledgeable and Accurate. You must have read and studied while under the earth's surface, LOL.
 

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2002.5 F55 CORSA STS, 2014 Explorer XLT FWD
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I drive and maintain (in my own shop) a 2002.5 STS F55 and work part-time behind the parts counter at my local Western (Tire &) Auto full service center. Been a car freak since first license in 1954.

"Water surface" - 28 year active Navy career, 20 of it on sea/staff duty in submarines. Diesel boats, fast attacks, missile boats. Retired on 30 in 1988.

Emergency surface.jpg
 

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Discussion Starter #13
I drive and maintain (in my own shop) a 2002.5 STS F55 and work part-time behind the parts counter at my local Western (Tire &) Auto full service center. Been a car freak since first license in 1954.

"Water surface" - 28 year active Navy career, 20 of it on sea/staff duty in submarines. Diesel boats, fast attacks, missile boats. Retired on 30 in 1988.

View attachment 575694
First off thank you for your Service to OUR GREAT Country USA, my father served in WWII 1944-1945 on a Destroyer Escort (Referred to as a TIN Can) in in both the Atlantic & Pacific theaters, amazing the stories he told me before he passed away in 2012. Great memories of life, if you have children pass the outstanding stories on, GO NAVY!
 
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