WARNING: BRAKE FLUID CONTAINS POLYGLYCOL ETHERS AND POLYGLYCOLS. AVOID CONTACT WITH EYES. WASH HANDS THOROUGHLY AFTER HANDLING. IF BRAKE FLUID CONTACTS EYES, FLUSH EYES WITH RUNNING WATER FOR 15 MINUTES. GET MEDICAL ATTENTION IF IRRITATION PERSISTS. IF TAKEN INTERNALLY, DRINK WATER AND INDUCE VOMITING. GET MEDICAL ATTENTION IMMEDIATELY.
CAUTION: Do not spill brake fluid onto painted surfaces. If spilled, wipe it up immediately.
NOTE: The control module ground must be verified before any measurement involving those pins can be made.
NOTE: EEC-IV 60-Pin Breakout Box pin numbers may not match anti-lock brake control module pin numbers.
Anti-Lock Brake Control Module Ground
Throughout the pinpoint tests, many of the values given depend on the presence of a good ground available at pins 18,19, 21, and 60. Once the EEC-IV 60-Pin Breakout Box and 40/60-Pin ABS Adapter Cable are installed, check for continuity between pins 18, 19, 21, and 60 and ground.
NOTE: Always check the fluid level in the brake master cylinder before performing the test procedures. If the fluid level is not at the MAX line, add High Performance DOT 3 Motor Vehicle Brake Fluid C6AZ-19542-AB or DOT 3 equivalent meeting Ford specification ESA-M6C25-A, DOT 3.
NOTE: The only part of the HCU assembly that is replaceable is the coil assembly. The rest of the HCU assembly is not repairable nor can it be pressure checked. If any part other than the coil assembly fails, the HCU assembly must be replaced as a complete unit.
NOTE: Radio Frequency Interference (RFI) can cause false Diagnostic Trouble Codes (DTCs) to be generated if aftermarket electrical work has been done.
NOTE: Problems in other areas may affect the operation of the ABS system. Those areas include:
Steering and suspension.
Tire integrity and air pressure.
Wheel bearings.
Brake components that are common to all brake systems.
