Antilock Brakes / Traction Control Systems: Service Precautions
CAUTION: When fasteners are removed, always reinstall them at the same location from which they were removed. If a fastener needs to be replaced, use the correct part number fastener for that application. If the correct part number fastener is not available, a fastener of equal size and strength (or stronger) may be used. Fasteners that are not reused and those requiring thread locking compound will be called out. The correct torque value must be used when installing fasteners that require it. It the above conditions are not followed, parts or system damage could result.REPLACEMENT TIRE
Tire size can affect the performance of the Rear Wheel Antilock (RWAL) system. Replacement tires must be the same size, load range, and construction on all four wheels
SERVICE PRECAUTIONS
The RWAL system is basically maintenance free. When doing work on this system, the following must be observed:
- Before doing welding work on the vehicle with an electric welding unit, turn the ignition switch "OFF" and disconnect the Electronic Control Unit (ECU) connectors.
- Do not use a fast charger for starting the engine.
- Disconnect the negative battery cable when fast charging.
- Never disconnect the the battery from the vehicle electrical system with the engine running.
- Make sure all wiring harness connectors are securely connected.
- Always note the routing, position, mounting, and location of all components, wiring, connectors, clips, brackets, brake pipes, etc., when servicing the RWAL system. Speed sensor wiring, routing, and retention is especially important to help prevent false signals due to electrical noise picked up by the wiring. Proper system operation can only be achieved if the system is restored to its original equipment condition.
The above mentioned items do not cover every possibility, but must be followed when working on RWAL. When doing service work, become familiar with RWAL, and how they may be interrelated with other components on the vehicle.