|
Author
|
Message |
|
|
 Posted: Mon Jul 16, 2012 7:24 am |
|
|
|
|
Joined: Feb 10, 2010
Posts: 1839
Trade Rating: +15
Location: Portsmouth
|
 |
Had a multimeter out and the passenger side dipped beam bulb in my morrettes has dropped to 6v? any ideas why this could be? bulbs work fine its definately the v drop which is causing my issue.
| |  |
|
|
 |
|
|
|
|
|
|
Posted: Mon Jul 16, 2012 8:32 am |
|
|
|
|
Joined: Feb 07, 2010
Posts: 13077
Trade Rating: +65
Location: England
|
|
Poor connection
| | |
|
|
|
|
|
|
|
|
|
|
Posted: Mon Jul 16, 2012 10:34 am |
|
|
|
|
Joined: Feb 10, 2010
Posts: 1839
Trade Rating: +15
Location: Portsmouth
|
|
| Lee wrote: |
| Poor connection |
It was fine then the volts just dropped? Would it be worth removing the headlight and then rewiring and fitting them?
| | |
|
|
|
|
|
|
|
|
|
|
Posted: Mon Jul 16, 2012 11:10 am |
|
|
|
|
Joined: Apr 14, 2010
Posts: 713
Trade Rating: +2
Location: Gothenburg, Sweden
|
|
| jimjam19927 wrote: |
| Lee wrote: |
| Poor connection |
It was fine then the volts just dropped? Would it be worth removing the headlight and then rewiring and fitting them? |
How did you get the 6v - probes on the terminals that attach to the bulb?
If you measure between the [supposed] +12V feed and known good ground (like battery pole, as well as between the ground lead in the bulb connector and a known good you might be able to figure out if the problem is on the +12V feed or on the ground side...
You want 12V (~14 w/ engine running) on the feed and as close to 0 as possible on the ground (do the checks w/ light on, as the very low current from a multimeter most likely wouldn't cause much of a voltage drop over a bad connection of itself)
| | |
|
|
|
|
 | |  |
| Silvermetallic 2004 206 RC | |
 | |  |
|
|
|
|
|
|
|
Posted: Mon Jul 16, 2012 11:59 am |
|
|
|
|
Joined: Feb 10, 2010
Posts: 1839
Trade Rating: +15
Location: Portsmouth
|
|
| mtempsch wrote: |
| jimjam19927 wrote: |
| Lee wrote: |
| Poor connection |
It was fine then the volts just dropped? Would it be worth removing the headlight and then rewiring and fitting them? |
How did you get the 6v - probes on the terminals that attach to the bulb?
If you measure between the [supposed] +12V feed and known good ground (like battery pole, as well as between the ground lead in the bulb connector and a known good you might be able to figure out if the problem is on the +12V feed or on the ground side...
You want 12V (~14 w/ engine running) on the feed and as close to 0 as possible on the ground (do the checks w/ light on, as the very low current from a multimeter most likely wouldn't cause much of a voltage drop over a bad connection of itself) |
Thanks will give this a shot. All the other bulbs are working fine and functions proper like flashing etc.
| | |
|
|
|
|
|
|
|
|
Membership:
Latest: 
New Today: 0
New Yesterday: 1
Overall: 17129
Online Now [386]:
Visitors: 385
Members: 0
Staff Online Now:
Page Views:
General
Forums Home
Forum FAQ
Search
