Help please ABS and Brake light on - 2005 Taco

Hello, my yellow ABS and red parking Brake warning lights came on last week and they stay on but truck seems to brake fine with normal driving (I don't have a code tester). I figured it may be a wheel speed sensor or a broken wire to one of them. With ignition on... I checked for voltage from harness connector at/to each wheel sensors and all have 10+ DC voltage except for my right rear. So I checked for voltage at the harness connector on top of rear axle. At this 4 wire connector, I only have voltage to the yellow wire which would be going to my left sensor. Nothing at the red or two black wires. I figure there should be voltage on one of these other wires going to my right wheel. If that is correct, then I have a broken wire in the harness or the module is faulty. How can I figure out which it is? Thanks

 

Without knowing what code(s) you have you can guess at it all day and not get anywhere, you can check your brake fluid level but if that's good your gona have to get the codes read to proceed.

Be aware that if you were unplugging things to test them you may have generated other codes in addition to your original problem.

 

Hello Dm93. I didn't want to guess at anything, that's why I tested each wire and isolated it down to the Right rear not having the voltage to it then asked the question hoping someone knew how to actually test the module. Not sure how a lack of voltage to that one sensor would be related to the brake fluid level.

 

Have you tried using a scanning tool to run a diagnostic and try pulling any codes? That will narrow it down pretty close to the problem.