I remember, I had a 1980 Suburban that didn't have a 'compatible' plug, and that's the way we resolved the problem. This operation will be audible as an exhaust of air from the valve. Trouble Code Repair- Go from code to diagnosis in a matter of seconds with comprehensive diagnostic trouble code repair procedures. The revelation is interesting because it seems that Bendix is taking over the tractor market share from Meritor these days, but Meritor seems to be maintaining it's trailer market share. Follow the instructions provided with the connector to determine which connector belongs in which side of the vehicle. I think there's a manufacturer defect with the casing and the silicone they put over their circuit boards.
However, most older tractors never had constant power to the blue wire as it was used for auxiliary purposes like dump valve activation on spread axle trailers. If more than one modulator is fitted, the exhaust noise from each valve will be separated by appproximately 1 second. There will be a plastic connector on each side that must be separated to insert the wiring harness connector. Some of the plug in abs testers for trucks and trailers will pulse lights in the tester that you have to count and figure out what it means. Rather than enter a lengthy debate with me having to quash several fallacies, I'll extend a warm but not fuzzy welcome to the forum. I'm not sure what the problem.
Good Luck, safe travels and don't let anyone rip you off!! This goes for the tractors as well. It doesn't really dig down and tell you whether you would have a shorted wheel speed sensor, or an open wheel speed sensor; it just tells you there's an issue with the wheel speed sensor. A test light will be the only tool you really need to find out. Thats what whomever answered the phone told me. How the tractor reads the abs computer, i think its done through pulses.
So I can be of more assistance, what years were the truck and trailer manufactured and this isn't necessarily the model year of the vehicles! In this event the configuration and wiring diagrams should be checked against your installation to ensure that the actual pipework and wiring conforms to the allowable configuration details. The light will come on when you are braking and then go out. This technician was pulling the sensor out and actually building in an air gap between the speed sensor and the exciter ring. Don't have time to proofread or elaborate on anything right now. Some builds from '94 to '96 had it and some didn't as standards hadn't been developed nor implemented. I've been pondering exactly how I should respond as your post seems directed my way.
If they work, look for the truck brake light fuse. Sounds like you've got a full day's work for sure. Complete Service Information for Class 4-8 Trucks Repair- Speed up repairs with our exclusive repair information for all makes and models, from 1990 forward. Once these two checks are made with correct results, no further checks are required. The table below shows how to determine the number of controlled channels for your installation.
Of course, if you get a real issue with the wheel end—really bad wobble, or a wide air gap—the system is still designed to set a trouble code. As for the wheel sensors, you need to check the resistance with an ohmmeter. Whatever the case, you need to find out if your tractor was originally or currently is supposed to be equipped with constant power to the blue wire, center pin conductor. These payments are given for estimated use only. So, if you want my opinion, go with the Meritor Wabco and spend the extra few dollars for the software troubleshooter.
At any rate, I was just trying to simplify an answer for the one driver having random problems. Even tell you how many miles the trailer has gone with the abs powered up. This numbering system caters for self steering axles which will always be number 1. I believe that has been narrowed down to improper wheel sensor positioning, loose terminal connections and ground failures. Also to check from the abs computer to the sensor, just unplug it from the computer and check the ohms there. Kinda like eric's video on pulling those honda codes without a scanner. That becomes very expensive to the fleet.
Also check for any looose wires on your trailer. These estimates are here to give you a ballpark idea of where your monthly payments will be. Most commonly in the trailer, ive found a broken corroded wire somewhere underneath in the factory wiring and factory connectors. I've seen lots of poor connections in the truck plug, as well as any of those squeeze splices you might have in your trailer. In reference to the Bendix, they are more expensive and less reliable. If it needs to be replaced, then driving the trailer or tractor should reset the computer once it sees that the wheel sensors are working.
Thats the brand name anyways. I would certainly encourage fleets to take advantage of that. I'm not going to be a reliable source of information for any statistical analysis with the Haldex. Not as easy to do in the big diesel world. If your brake and turn lights work but the taillights don't, check the plugs trailer and truck sides for corrosion, and chek both the trailer and truck wiring harnesses for chafed insulation and bare conductors on the brown wires. I've been pondering exactly how I should respond as your post seems directed my way. .
Full trailers Drawbars have their axles numbered from the front of the trailer rearwards so that the front axle is number 1. In the last five years, we've replaced approx. If it doesn't come on or stays on, there is a problem. The tractor should have a power source for the trailer abs. Check the fuse box under the hood for any burned out fuses. You dont have to spin the wheel to check. Haldex consists of close to 20% of our fleet.