'94 f250 psd brake warning lamp

[bockhold]

why are you pumping the brake 5 times? i would think the vaccum would be gone by then and might trip the light.

i never messed with or have dlr, but do the lights turn on when the engine is started or after the brake has been released and then is reapplied and in park, the light stays on?

[nozel]

my reply(s) in line

Originally Posted by bockhold

-why are you pumping the brake 5 times?

As a trouble-shooting step which proved vacume depleted and
proved the vacume pump is serviceable as warn light went out

Note:the warn lamp stays out during normal driving conditions.

-i would think the vaccum would be gone by then and might trip the light.

Exactly my finding as proven by the t/s result above.

But here is the problem not answered:

Brake Warn lamp stays off when park brake is set. Should come on in this case
Is the park brake switch an grounding circuit when the park brake is on?

DRL are always on but should be OFF when park brake is ON an should be ON when park brake OFF

Thanks
RZ

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Last edited by nozel : 10-29-2008 at 10:50 AM.

[bockhold]

Originally Posted by nozel

my reply(s) in line



But here is the problem not answered:

Brake Warn lamp stays off when park brake is set. Should come on in this case
Is the park brake switch an grounding circuit when the park brake is on?

DRL are always on but should be OFF when park brake is ON an should be ON when park brake OFF

Thanks
RZ

has it always been like that since you bought it?
our buick turns the lights on when the brake is released and stays on till the car is off with the brake on.

the p brake switch might be bad or loose connection.

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Last edited by bockhold : 10-30-2008 at 12:21 PM.

[nozel]

Problem solved:
Wire terminal at park brake switch was loose.
Terminal tightened, installed to switch, DRL's and brake warn lamp work as they should and when they should!
Thanks for the replies
RZ

[bockhold]

Originally Posted by nozel

Problem solved:
Wire terminal at park brake switch was loose.
Terminal tightened, installed to switch, DRL's and brake warn lamp work as they should and when they should!
Thanks for the replies
RZ

thats great.
glad to help