My 99 Surburban lights only work on high beam. The daytime running/low beam lights won't come on any more. I've been told to replace the instrument cluster which is about $300! Is there a cheaper way? Maybe a way to bypass the panel so the lights work on just manual light switch. I really don't need the daytime light feature.
Just a temp remedy for now is to hardwire low beams to running lights or even to the high beams that stay on (make sure to unplug high beams though).
This is a temp fix till you figure it all out...keep you from a ticket.
It could be a switch,connector, or even bad bulb... Just depends on your particular case
Cluster is not at all connected to your headlights other than high beam indicator. If you have high beams then the relay is good. So the +12feed will be at the orange wire at the lights. So if yellow has no ground, then the dimmer or multifunction switch on steering signal switch is bad. This is where to check next
Don't know that much about 99 Surburbans but you may won't to see if you could just unplug it from the cluster or maybe see if thiers a fuse for your lights that you can take out
SOURCE: Odometer only works at night
THE PROBLEM IS A BAD OR SHORTED PINS OR CHIP, SO YOUR BEST BET IS THAT, TO REPLACE THE CLUSTER, SORRY.
ALL NEW CLUSTERS ARE ELECTRICAL NOW.
WHAT YOU CAN TRY IS TAKE THE CLUSTER OUT AND LOOK FOR ANY BLOWN RESISTOR OR METAL CARRIER.
IF IT WORKS AT NIGHT THE LIGHT SWITCH IS SENDING THE POWER TO THE UNIT. AT DAY TIME ANOTHER SOURCE IS SENDING POWER TO IT. SO THAT CHANNEL MAY BE BLOWN.
SOURCE: Electrical Instrument cluster does not function
I had the same problem with a car i owned and found out it was a short in the wireing in the dash, you will have too have it re-wired, but too be certain you should have it checked out by a mechanic in your city.........
SOURCE: switching instrument cluster
AW MAN, YOU GONNA HAVE TO TAKE IT TO GET REPROGEMAMED TO THAT CLUSTER, OR PUT THE ORIGINAL BACK ON AND GOOD LUCK STARING IT. IF NOT TOW IT IN AND HAVE IT REPROGRAMED
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DEFINITION: This diagnostic procedure should only be used if the high beam headlamps are operating properly and the low beams are inoperative.
1
Did you perform the Headlights System Check?
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Go to Step 2
Go to Headlight System Check
2
Does the test lamp light?
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Go to Step 3
Go to Step 5
3
Does the test lamp light?
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Go to Step 4
Go to Step 6
4
Does the test lamp light?
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Go to Step 7
Go to Step 8
5
Replace the headlamp dimmer switch.
Is the repair complete?
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Go to Headlight System Check
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6
Repair the open in CKT 359 (PPL) between the headlamp dimmer switch and the daytime running lamp relay.
Is the repair complete?
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Go to Headlight System Check
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7
Replace the high/low beam headlamps.
Is the repair complete?
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Go to Headlight System Check
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8
Is the repair complete?
--
Go to Headlight System Check
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Just checked the wiring and your headlights are wired common ground. So black is ground and power comes from headlight dimmer to brown wire for low beam. So check for power there first. From there it goes to a relay under dash by column for the daytime running light then to the headlight itself.
If you choose to bypass running lights, then if power is at brown wire at dimmer switch then just run a new wire from that switch to the browns on the headlight bulb connector
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