RABS valve switch closed
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RABS valve switch closed
pedant
Joined: Jan 2008
Posts: 23,576
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From: EXTREME southwest CT
My light has been on for over 200k.
I can't get any flashes by grounding the orange/black wire.
I have replaced the pumpkin sensor and bled the RABS valve.
.....Subscribing to see an answer.
I can't get any flashes by grounding the orange/black wire.
I have replaced the pumpkin sensor and bled the RABS valve.
.....Subscribing to see an answer.
Fleet Owner
Joined: Oct 2005
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From: Kentucky
My poor vision (over 40) and that blurry photo I have to ask...that warning indicator is the red lamp not the yellow/amber ABS indicator? If so there is a low fluid level switch in the master cylinder. Low fluid level or a faulty switch can cause the red lamp to turn on.
pedant
Joined: Jan 2008
Posts: 23,576
Likes: 40
From: EXTREME southwest CT
The photo's blurry, but the amber indicator between the woodgrain strips says "rear antilock"
rla is right. if both lights are on you should check the fluid level indicator in the master cylinder and the plug that attaches to the side.
The plug often corrodes due to brake fluid spillage.
rla is right. if both lights are on you should check the fluid level indicator in the master cylinder and the plug that attaches to the side.
The plug often corrodes due to brake fluid spillage.
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i ain't rite
Joined: Mar 2005
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From: Marlboro Mental Hospital.
i fixed mine in the 88 by removing the light bulb and bypassing the valve back in 88 when the truck had less than 3,000 miles on it.
have not had any problems with the rear brakes besides routine maintenance since.
have not had any problems with the rear brakes besides routine maintenance since.
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well just for an update.... the 6 million and 1st attempt of the m/c plug done it.....
i took the plug out scraped the crap out of the terminals inside it and the plug then coated the terminals in the plug with dielectric grease
so im happy thank you everyone that said check it again
i took the plug out scraped the crap out of the terminals inside it and the plug then coated the terminals in the plug with dielectric grease
so im happy thank you everyone that said check it again
Lead Driver
Joined: Aug 2006
Posts: 5,670
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From: Sand Lake, MI
really 16 people and not a single reply...
Well maybe 15? I turn I my computer with my morning coffee, I generally leave it on all day, unless I know I'll be gone several hours, then I might shut it off.
no the red one is on and the yellow one flashes 4 times and according to the link the rabs valve switch is closed
Where ya get that? (scratch that, seen your link)
In my book says 4 flashes = "open or shorted valve switch or harness".
Circuit 534 open or short.
Circuit 274/397 Open.
Or replace RABS valve
(Depending on results of testing)
534 runs between Module and Valve, LB/R wire.
274 Grounds Valve, Black wire.
397 Not finding it in the diagram, might be a one or the other type deal or is simply hiding in plain view.
Well maybe 15? I turn I my computer with my morning coffee, I generally leave it on all day, unless I know I'll be gone several hours, then I might shut it off.
no the red one is on and the yellow one flashes 4 times and according to the link the rabs valve switch is closed
Where ya get that? (scratch that, seen your link)
In my book says 4 flashes = "open or shorted valve switch or harness".
Circuit 534 open or short.
Circuit 274/397 Open.
Or replace RABS valve
(Depending on results of testing)
534 runs between Module and Valve, LB/R wire.
274 Grounds Valve, Black wire.
397 Not finding it in the diagram, might be a one or the other type deal or is simply hiding in plain view.