Help,This car is driving me mad! T350 Headlights
Discussion
My T350 dipped beam headlights aren't working.
Gradually over the last few months there have been times they have either i) not come on at all or ii) turned themselves off while driving.
When turning on the headlights, the LED's by the switch don't turn on (but it rarely did this anyway, blamed it on TVR quirkiness - could be related?), and the dash lights don't dim like I have set it up when the headlights are turned on. When I use the main beam flasher all the headlights (main, dipped, side) work fine (not the bulbs then) but the main beam doesn't toggle like it should, it is just a flash of headlights. All I ever have is sidelights.
When the problem was intermittent the dipped beam either worked for a while then turned off, or didn't work and then sprang into life.
I have checked the following:
New headlight relay
Checked fuses and checked rating for all fuses
Checked all earths (battery, pass foot well, both engine bay chassis earths)
Disconnected and reconnected dash ECU and both door ECU's under dash in case of loose connection
Anybody here had the same problem? Maybe point me to some other things to check? I'm at my wits end.
Gradually over the last few months there have been times they have either i) not come on at all or ii) turned themselves off while driving.
When turning on the headlights, the LED's by the switch don't turn on (but it rarely did this anyway, blamed it on TVR quirkiness - could be related?), and the dash lights don't dim like I have set it up when the headlights are turned on. When I use the main beam flasher all the headlights (main, dipped, side) work fine (not the bulbs then) but the main beam doesn't toggle like it should, it is just a flash of headlights. All I ever have is sidelights.
When the problem was intermittent the dipped beam either worked for a while then turned off, or didn't work and then sprang into life.
I have checked the following:
New headlight relay
Checked fuses and checked rating for all fuses
Checked all earths (battery, pass foot well, both engine bay chassis earths)
Disconnected and reconnected dash ECU and both door ECU's under dash in case of loose connection
Anybody here had the same problem? Maybe point me to some other things to check? I'm at my wits end.
Just thought I'd update in case anyone has the same problem in future.
I took your advise NWtony and took off the dash and had a play with the contacts in the dial/switch (nothing wrong) and the ribbon cables, then after wiggling all the wires (technical term), I had headlights momentarily.
I traced the ribbon cables back to a little control board hidden behind the dash binnacle and found that the black plug leading from the control board to the dash ecu had a few loose wires, so I jammed them back in and it all seems to work now.
Problem solved for now.
Here's a pic of the offending control board plug, hidden away!
I took your advise NWtony and took off the dash and had a play with the contacts in the dial/switch (nothing wrong) and the ribbon cables, then after wiggling all the wires (technical term), I had headlights momentarily.
I traced the ribbon cables back to a little control board hidden behind the dash binnacle and found that the black plug leading from the control board to the dash ecu had a few loose wires, so I jammed them back in and it all seems to work now.
Problem solved for now.
Here's a pic of the offending control board plug, hidden away!
Edited by thatsprettyshady on Sunday 20th September 14:21
Sort of.Gassing Station | Tamora, T350 & Sagaris | Top of Page | What's New | My Stuff