Vehicle Damage Warnings

Service Precautions
When working on this system. observe the following precautions:
- Before welding on the vehicle with an electric welding unit, complete the following steps:
- Turn the ignition switch OFF.
- Disconnect the EBCM connectors.
- Do not use a fast charger for starting the engine.
- Disconnect the negative battery cable when fast charging. Refer to battery Disconnect Caution in cautions and Notices.
- Never disconnect the battery from the vehicle electrical system while the engine is running.
- Connect all wiring harness connectors securely.
- Proper speed sensor wiring, routing and retaining are necessary in order to prevent false signals due to electrical noise. You can achieve proper system operation only by restoring the system to its original condition.
When servicing the ABS, note the routing, position, mounting and locations of the following items:
- All components
- The wiring
- The connectors
- The clips
- The brackets
- The brake pipes
Follow the above mentioned precautions when working on ABS. Familiarize yourself with ABS and it relationships with other components on the vehicle.

Brake Fluid and Brake Fluid Handling

Use extreme care when selecting brake system fluids or seal damage can result.
Do not reuse brake system fluids. Do not mix power steering fluid with brake fluid. Fluid contamination may result in swelling and deterioration of rubber parts. This may result in reduced brake performance and the eventual loss of braking capability.
Service booster components in a clean work area separate from the brake servicing area. Wash hands before changing work areas. Do not use the same containers for brake and power steering fluids.

Notice: Brake fluid will damage electrical connections and painted surfaces. Use shop cloths, suitable containers, and fender covers to prevent brake fluid from contacting these areas. Always re-seal and wipe off brake fluid containers to prevent spills.

Always store brake fluid in a closed, sealed container. Never use previously opened containers of stored brake fluid. Always use new brake fluid from a sealed container. Brake fluid left in open or improperly sealed containers will absorb moisture. Moisture can lower the brake fluid boiling point, causing the following problems:
- Brake system contamination
- Corrosion
- Deterioration of rubber components

Substandard Or Contaminated Brake Fluid

If the brake fluid contains improper fluid, water, or other contaminates, the brake fluid may boil or may deteriorate rubber components in the hydraulic brake system.
Evidence of rubber deterioration occurs in the following areas:
- Swollen master cylinder piston seals
- Swelling of the wheel cylinder boots
- Swelling of caliper boots
- Swelling of the master cylinder reservoir diaphragm
If rubber deterioration is found, replace all rubber parts, including the hoses, in the brake system. Inspect for brake fluid on the brake linings. Replace the brake linings that are contaminated with brake fluid.
If the brake fluid is contaminated and the master cylinder piston seals are good, inspect for leaks and excessive heat conditions. If no leaks or excessive heat conditions are found, flush the brake system.