Backup Lights not working

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Backup Lights not working - 5/30/2007 11:40:00 AM    Shamrock3   Posts: 4 Joined: 5/30/2007 Status: offline 1985 Blazer, 5 speed manual transmission. Both backup lights not working. Checked bulbs and are good. Need to find the location of the backup switch and want to start there and see if I have a bad switch or wiring..   Post #: 1

RE: Backup Lights not working - 5/30/2007 12:00:39 PM    swartlkk Posts: 14530 Joined: 5/1/2005 From: Waterloo, NY Status: offline Mostlikely is the switch.  It should be located on the transmission.  I don't have access to my references at the moment and won't until really late tonight.  Hopefully someone else can answer you sooner... *Moved to 1st Gen Tech* _____________________________ Kyle- 04 Rainier My Restoration Projects Please Do Not PM for Tech Help (in reply to Shamrock3) Post #: 2

RE: Backup Lights not working - 5/30/2007 4:24:46 PM    lastcoupe Posts: 1137 Joined: 7/27/2006 Status: offline Yep the switch is in the side of the transmission..passenger side IIRC, but it has a 2-wire connector.    Easy and quick diagnosis, key on, unplug the connector from the switch, install a fused jumper wire across the 2 terminals of the connector, and the lights should turn on.  If so the switch is bad. _____________________________ ASE & GM certified Pro Auto Technician (in reply to swartlkk) Post #: 3

RE: Backup Lights not working - 6/1/2007 9:57:56 AM    Shamrock3   Posts: 4 Joined: 5/30/2007 Status: offline Jumppered the wires,, and lights came on..Looks like the switch is bad... Is there and special procedures to replace it, or is  it a simple unscrew out and screw new one in. Should the transmission be in any paticular gear? (in reply to lastcoupe) Post #: 4

RE: Backup Lights not working - 6/1/2007 3:57:54 PM    lastcoupe Posts: 1137 Joined: 7/27/2006 Status: offline Nah, doesn't matter, just unscrew it and screw the new one in.  It's a 19mm or 3/4" iirc. _____________________________ ASE & GM certified Pro Auto Technician (in reply to Shamrock3) Post #: 5

RE: Backup Lights not working - 6/2/2007 4:12:13 AM    Shamrock3   Posts: 4 Joined: 5/30/2007 Status: offline Thanks.. Yes it was the  switch. 22mm deep socket. The switch is a round button roller actuation, looks like a ball bearing. Ah yes, on to state inspection to see what else they can find wrong. LOL (in reply to lastcoupe) Post #: 6

RE: Backup Lights not working - 6/2/2007 3:04:54 PM    lastcoupe Posts: 1137 Joined: 7/27/2006 Status: offline You're very welcome, good luck with the inspection! _____________________________ ASE & GM certified Pro Auto Technician (in reply to Shamrock3) Post #: 7

RE: Backup Lights not working - 7/16/2008 6:54:35 PM    drlapp   Posts: 8 Joined: 7/5/2008 Status: offline I have the same problem.I have the new switch but I can''t find the old one on the transmission? (in reply to lastcoupe) Post #: 8

RE: Backup Lights not working - 7/18/2008 3:25:04 AM    drlapp   Posts: 8 Joined: 7/5/2008 Status: offline I found it and changed it but still no lights.I checked the fuse.Next I will check the bulbs. (in reply to drlapp) Post #: 9

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