Headlamp
Thread Starter
Racer
Joined: Sep 2014
Posts: 421
Likes: 34
From: Troy Michigan
Headlamp
My basic question is can the isolation relay cause one headlamp to fail? One of my headlamps works, well the other does not. I tried swapping the relays which did not fix the problem. Now I am hoping it is the isolation relay. The motor doesn't seem to run at all on the passager side
Race Director
Joined: Aug 2007
Posts: 11,889
Likes: 8
From: Whitefish Falls Ontario
St. Jude Donor '08-'09
The isolation relay is only used (through its normally closed contacts) to close the headlight. If the wiring is the same as my 84, both lights get power from fusible links to open the headlight doors..
Race Director
Joined: Aug 2007
Posts: 11,889
Likes: 8
From: Whitefish Falls Ontario
St. Jude Donor '08-'09
Cliff, for this to work you need to disconnect the motor first or it will provide power to close the door. You would need to switch the light sw. on, turn the ****, then turn the light switch off. If the door closes then the motor and that part of the system is ok..
Last edited by ccrazor; Jul 30, 2015 at 02:18 AM.
Race Director
Joined: Aug 2007
Posts: 11,889
Likes: 8
From: Whitefish Falls Ontario
St. Jude Donor '08-'09
