Brake indicator
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Posting Guru
Joined: Nov 2008
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From: Oregon
Brake indicator
My '99 250 SD - Turn on the key and the brake indicator light comes on.
Start it and the indicator turns off, the E-brake is still on but no light.
It does have an aftermarket radio installed, by PO.
Start it and the indicator turns off, the E-brake is still on but no light.
It does have an aftermarket radio installed, by PO.
Token Redneck
Joined: Jun 2007
Posts: 9,339
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From: Breckenridge, TX
Some aftermarket heads will only operate certain functions (DVD player) if the parking brake is set, and will hook into that switch's wiring. If the light comes on during the test he knows the bulb is good, so the problem is either in the switch or the wiring splice to the radio harness if it has a function that needs to be unlocked by the parking brake.
Posting Guru
Joined: Jan 2012
Posts: 1,176
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From: Indiana
My money is on the park brake switch- especially if the truck is an automatic. An automatic usually doesn't see the park brake used as much as on a manual, since autos have a "PARK." Therefore, the switch wouldn't be used as much as well.
Hotshot
Joined: Jan 2004
Posts: 19,767
Likes: 1,082
From: St Louis
I would also.
When I acquired my 01 SD, the switch was gummed up and the light didn't work when the parking brake was applied. I shot it with some contact cleaner and got it loosed up and it's been working fine for four years now.
When I acquired my 01 SD, the switch was gummed up and the light didn't work when the parking brake was applied. I shot it with some contact cleaner and got it loosed up and it's been working fine for four years now.
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Posting Guru
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From: Oregon
I'll try the contact cleaner, first.
It's just a radio, no Bluetooth, or Nav but????
The indicator only comes on with the ABS light and then immediately goes off, whether, or not, the brake is on.
It's just a radio, no Bluetooth, or Nav but????
The indicator only comes on with the ABS light and then immediately goes off, whether, or not, the brake is on.
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Posting Guru
Joined: Jan 2012
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From: Indiana
If it's just a standard radio (AM/FM/CD) then the radio has nothing to do with it.
Like mentioned, dash lights come on for a second or two when you first start it for a bulb check. That's normal. But if the light stays on OR the light doesn't come on with the park brake applied, you likely have a problem at the switch.
The bulb check takes place with absolutely no input from the switch- it just lets you know the bulb actually works and nothing more.
Like mentioned, dash lights come on for a second or two when you first start it for a bulb check. That's normal. But if the light stays on OR the light doesn't come on with the park brake applied, you likely have a problem at the switch.
The bulb check takes place with absolutely no input from the switch- it just lets you know the bulb actually works and nothing more.
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Posting Guru
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From: Oregon
Parking brakes save lives, use them.
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