ABS trouble shoot (1 Viewer)

[Russ84na]

I have a 96 lx450. The brakes appear to work fine, but the trouble light for the ABS system comes on about 5-10 seconds after the truck is started and stays on. If I shut off the truck the light resets, then comes back on after restarting the truck.
Any suggestions on what might be causing the problem? And where to check
Thanks
I did some checking and found that if I start the engine and let it idle, the abs light doesn't come on. If I back up light still doesn't come on. If I move forward in a straight line, still no light. As soon as I turn the the light comes on. Seems to me that it indicates a problem in a wheel sensor. How do I check to find if that is the case and which wheel it might be.

 

[Dr Red]

I have a 96 lx450. The brakes appear to work fine, but the trouble light for the ABS system comes on about 5-10 seconds after the truck is started and stays on. If I shut off the truck the light resets, then comes back on after restarting the truck.
Any suggestions on what might be causing the problem? And where to check
Thanks
I did some checking and found that if I start the engine and let it idle, the abs light doesn't come on. If I back up light still doesn't come on. If I move forward in a straight line, still no light. As soon as I turn the the light comes on. Seems to me that it indicates a problem in a wheel sensor. How do I check to find if that is the case and which wheel it might be.

I have the same problem. I recently replaced the inner axel seals and bearings, and found one of my wheel sensors had been damaged when the Previous Owner broke a birfield. I’m hoping replacing the wheel sensor will fix the problem. I’ll let you know once I obtain a new wheel sensor and get it installed. They’re not hard to remove, clean and inspect. You could start there. See if any look damaged.

 

[Rusty Marlin]

Open the good book (1996 FSM) to chaper DI ( Diagnostic's), page 188 (ABS system) and follow the prompts.