Hi Bob,
Here is a diagram showing connections for Lucas relays. Click on the small diagram, and it will enlarge.
https://www.autoelectricsupplies.co.uk/product/176Our installation for Main and Dip beams is as follows:
U (power from control box to both high and low beam relays) C2.
UW and UR (power to headlamp units.UW to Main beam, UR to Dip beam) C1.
BR (to earth, for both relays, via headlamp microswitch) W1.
UN and UB (switching power from dip switch) W2.
The headlamp flasher relay is slightly different, in that the original relay had only one power input. This is from the light switch, on the dash, and is live whenever the light switch is in the OFF position and is connected to C2. Within the relay, there is a jumper from C2 to W2 and provides power for switching circuit. If you have to replace this relay, and you can't find an original relay with this internal jumper, you can rig up an external jumper from C2 to W2.
So, connections to the flasher relay as follows:
UY (from light switch on dash) C2.
WU (power out to High beam) C1.
YU (to earth via headlamp flasher unit and the other headlamp microswitch) W1.
A quick description of how the headlamp flasher circuit works:
Power to headlamp flasher relay from dash light switch when switch is in the OFF position. When the light pods are raised, the microswitch, on the pod, is closed and provides an earth for the headlamp flasher unit. The flasher unit flashes and provides an intermittent earth for the flasher relay, and the High beam flashes on and off. When the dash switch is selected away from Off (either side light or headlight) the flasher system is deactivated.
If you wish to flash your lights at someone, just raise the pods with the dash switch OFF.
If you wish to raise the pods without the headlights flashing, preselect the dash switch to either sidelights or headlights, and then raise the pods.
Hope this all makes sense.
Cheers,
Colin.
bloodknock wrote:Hello again fellow sufferers
can anyone help identify the actual relay terminals onto the Lotus sprint wiring diagram please?
regards
Bob
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