# 1998 grandprix reverse light dont work need help **URL:** \ **Category:** PittSpeed Off Topic\ **Created:** [July 14, 2009, 12:55pm UTC](https://forums.speedlife.net/t/1998-grandprix-reverse-light-dont-work-need-help/203185 "2009-07-14T12:55:39Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![F-B-A](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/f-b-a/32/6022_2.png) [@F-B-A](https://forums.speedlife.net/u/F-B-A)\ **Post date:** [July 14, 2009, 12:55pm UTC](https://forums.speedlife.net/t/1998-grandprix-reverse-light-dont-work-need-help/203185/1 "2009-07-14T12:55:39Z")
Traced this back to the box ontop of the trans axle, which if i apply power to the little green wire the reverse lights come on, but simply putting it into reverse doesn’t do it. its not the fuses… BUT putting it into reverse does turn on the “R” indicator on the dash. So my question is… who has a wiring schematic that shows where the power comes into the box, and which wires do what. ---
**Author:** ![Converted2LSX](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/converted2lsx/32/5962_2.png) [@Converted2LSX](https://forums.speedlife.net/u/Converted2LSX)\ **Post date:** [July 14, 2009, 1:57pm UTC](https://forums.speedlife.net/t/1998-grandprix-reverse-light-dont-work-need-help/203185/2 "2009-07-14T13:57:42Z")
![http://gsi.xw.gm.com/image_en_us/gif/000/000/544/544642.gif](http://gsi.xw.gm.com/image_en_us/gif/000/000/544/544642.gif) **Park/Neutral Position (PNP) Switch, C1** ![http://gsi.xw.gm.com/image_en_us/gif/000/000/535/535900.gif](http://gsi.xw.gm.com/image_en_us/gif/000/000/535/535900.gif) • 7-Way F Metri-Pack Mixed Series (GRY) Pin Wire Color Circuit No. Function A ORN/BLK 434 Neutral Safety Switch Signal B ORN 840 Battery Positive Voltage C LT GRN 275 Park Neutral Position Switch Park Signal D BLK 1050 Ground E PPL 6 Starter Solenoid Crank VoltagE F LT GRN 24 Backup Lamp Supply Voltage G YEL 5 Crank Voltage **Park/Neutral Position (PNP) Switch, C2** ![http://gsi.xw.gm.com/image_en_us/gif/000/000/535/535904.gif](http://gsi.xw.gm.com/image_en_us/gif/000/000/535/535904.gif) • 4-Way F Metric-Pack 150 Series, Sealed (NAT) Pin Wire Color Circuit No. Function A WHT 776 Transmission Range Switch Signal P B YEL 772 Transmission Range Switch Signal B C GRY 773 Transmission Range Switch Signal C D BLK/WHT 771 Transmission Range Switch Signal A ---
**Author:** ![Converted2LSX](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/converted2lsx/32/5962_2.png) [@Converted2LSX](https://forums.speedlife.net/u/Converted2LSX)\ **Post date:** [July 14, 2009, 2:13pm UTC](https://forums.speedlife.net/t/1998-grandprix-reverse-light-dont-work-need-help/203185/3 "2009-07-14T14:13:24Z")
![http://gsi.xw.gm.com/image_en_us/gif/000/000/325/325583.gif](http://gsi.xw.gm.com/image_en_us/gif/000/000/325/325583.gif) **Transaxle Range Switch, C1** ![http://gsi.xw.gm.com/image_en_us/gif/000/000/068/68780.gif](http://gsi.xw.gm.com/image_en_us/gif/000/000/068/68780.gif) ``` • 7-Way F Metric-Pack Mixed Series (GRY) ``` Pin Wire Color Circuit No. Function A ORN/BLK 434 Park/Neutral Input B ORN 840 Fused Battery Feed ## C – Not Used D BLK 1050 Ground E PPL 6 Crank Relay Output-Coil F LT GRN 24 Backup Lamp Feed G YEL 5 Ignition Switched Power Feed **Transaxle Range Switch, C2** ![http://gsi.xw.gm.com/image_en_us/gif/000/000/040/40412.gif](http://gsi.xw.gm.com/image_en_us/gif/000/000/040/40412.gif) ``` • 4-Way F Metric-Pack 150 Series Sealed (NAT) ``` Pin Wire Color Circuit No. Function A WHT 776 Transaxle Range Switch Signal -Parity BIT B YEL 772 Transaxle Range Switch Signal -2 BIT C GRY 773 Transaxle Range Switch Signal -3 BIT D BLK/WHT 771 Transaxle Range Switch Signal -1 BIT ---
**Author:** ![F-B-A](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/f-b-a/32/6022_2.png) [@F-B-A](https://forums.speedlife.net/u/F-B-A)\ **Post date:** [July 14, 2009, 2:52pm UTC](https://forums.speedlife.net/t/1998-grandprix-reverse-light-dont-work-need-help/203185/4 "2009-07-14T14:52:18Z")
thank you kind stranger! Now the problem ive noticed is the Yellow wire G YEL 5 Ignition Switched Power Feed does not have ignition switched power, would you happen to have a schematic i can use to trace that lead? ---
**Author:** ![Converted2LSX](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/converted2lsx/32/5962_2.png) [@Converted2LSX](https://forums.speedlife.net/u/Converted2LSX)\ **Post date:** [July 14, 2009, 3:15pm UTC](https://forums.speedlife.net/t/1998-grandprix-reverse-light-dont-work-need-help/203185/5 "2009-07-14T15:15:50Z")
![http://gsi.xw.gm.com/image_en_us/gif/000/000/520/520085.gif](http://gsi.xw.gm.com/image_en_us/gif/000/000/520/520085.gif) ---
**Author:** ![F-B-A](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/f-b-a/32/6022_2.png) [@F-B-A](https://forums.speedlife.net/u/F-B-A)\ **Post date:** [July 14, 2009, 3:53pm UTC](https://forums.speedlife.net/t/1998-grandprix-reverse-light-dont-work-need-help/203185/6 "2009-07-14T15:53:11Z")
you are the best! ---
**Author:** ![Converted2LSX](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/converted2lsx/32/5962_2.png) [@Converted2LSX](https://forums.speedlife.net/u/Converted2LSX)\ **Post date:** [July 14, 2009, 3:55pm UTC](https://forums.speedlife.net/t/1998-grandprix-reverse-light-dont-work-need-help/203185/7 "2009-07-14T15:55:20Z")
💏