Replacement of Dash Lights

interested! · 11-09-2012, 02:31 PM

Hi! Also , check that the alternator is charging the battery , this should be around 13.5 volts with the engine running and this voltage brightens the driving lamps , check by turning the headlamps on against a wall ,then start the engine ,the lamps should dim slightly while the starter is being operated ( volt drop ) then brighten ( extra voltage ) . this means there is 13.5 volts in the system . Always start with ancillaries turned off , this gives maximum voltage to the starter/ ignition system for easier starting with an old battery .If the lights go out during this process then the battery may need bench charging or replacing .

cre · 11-09-2012, 10:01 PM

A lot of people find their lighting to be worse when using LEDs... bad hot spots and fast fall off. An aging dimmer circuit can often cause dim dash lights as well as aging bulbs.... old bulbs do not burn as bright as they did when new(er). To bypass the dimmer, unplug it and insert a wire jumper across the two striped white wires running into the dimmer's harness. White with black stripe to white with green stripe.

11-09-2012, 02:31 PM	#1
interested! 3" Exhaust Join Date: Apr 2011 Location: redhill surrey uk Posts: 142	replacement of dash lamps Hi! Also , check that the alternator is charging the battery , this should be around 13.5 volts with the engine running and this voltage brightens the driving lamps , check by turning the headlamps on against a wall ,then start the engine ,the lamps should dim slightly while the starter is being operated ( volt drop ) then brighten ( extra voltage ) . this means there is 13.5 volts in the system . Always start with ancillaries turned off , this gives maximum voltage to the starter/ ignition system for easier starting with an old battery .If the lights go out during this process then the battery may need bench charging or replacing . Last edited by interested!; 11-09-2012 at 02:45 PM. Reason: easy test info.

11-09-2012, 10:01 PM	#2
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	A lot of people find their lighting to be worse when using LEDs... bad hot spots and fast fall off. An aging dimmer circuit can often cause dim dash lights as well as aging bulbs.... old bulbs do not burn as bright as they did when new(er). To bypass the dimmer, unplug it and insert a wire jumper across the two striped white wires running into the dimmer's harness. White with black stripe to white with green stripe. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

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