Need help with headlight fault

Username · Sun Dec 22, 2019 6:31 pm

Hey guys, new to this forscan and am in need for some help, my problem is that I have some spotlights wired up on my Ute and the relay for them is buzzing when the engine is running when the engine is turned off it works fine, I am an auto sparky myself so I know they are wired up fine but I have found that I have low amps supplied from the bcm as my high beam signal wire I have only has 10vdc going to my relay.. is there any way I can plug into the computer with forscan and change some settings to get more amps/volts out of the bcm?? Thank you for your time

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m_attt · Sun Dec 22, 2019 11:13 pm

Stedi do a piggy back harness cheap that fits in the headlight plug and powers the relays for lightbars etc, works great.

Bala1 · Mon Dec 23, 2019 10:08 pm

Basically as m-att said,

I have Trigger off high beam to 85,

from 86 through cab switch to earth

Fused battery + to 30

87 to lights

Username · Mon Dec 23, 2019 10:16 pm

That’s what I have done I have done the same thing but my supply from the bcm is low I’m asking if I can adjust that through forscan

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kfa1950 · Mon Dec 23, 2019 10:21 pm

+ve from hi beam to 85. 86 to switch. Other side of switch back to earth side of hi beam, not to chassis earth.

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Username · Mon Dec 23, 2019 10:29 pm

I have also done this

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Mon Dec 23, 2019 10:32 pm

Username wrote: ↑Sun Dec 22, 2019 6:31 pm Hey guys, new to this forscan and am in need for some help, my problem is that I have some spotlights wired up on my Ute and the relay for them is buzzing when the engine is running when the engine is turned off it works fine, I am an auto sparky myself so I know they are wired up fine but I have found that I have low amps supplied from the bcm as my high beam signal wire I have only has 10vdc going to my relay.. is there any way I can plug into the computer with forscan and change some settings to get more amps/volts out of the bcm?? Thank you for your time

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No you cannot adjust with Forscan or any other tool.

On a side note can you please check your email address in your user profile Gmail continues to send me cannot be delivered emails. Thanks.

Mon Dec 23, 2019 10:39 pm

And again, please update you email address or so will remove the account.

Check your relay, quality or Chinese rubbish?
Enable dual battery mode and see if it improves.
What voltage is the alternator outputting at this time?
What is battery voltage at this time?