New Yorker V6-181 2972cc 3.0L SOHC VIN 3 FI (1989)
ABS Control Module: Description and Operation
ABS Controller Operation
The ABCM monitors wheel speed sensor signals as well as several internal functions of the hydraulic assembly. The primary functions of the ABCM are
to detect wheel locking tendencies, control the brake system while in anti-lock mode, monitor the system for proper operation, and control the display of
fault codes while in diagnostic mode.
The ABCM continuously monitors each wheel to determine if any wheel is beginning to lock. If a wheel locking tendency is detected, the ABCM will
modulate brake fluid pressure in some or all of the hydraulic circuits to prevent wheel lock-up and provide optimum braking.
The ABCM constantly monitors the ABS system for proper operation. If the ABCM detects an error, it can disable the anti-lock function and turn on the
ANTI-LOCK warning lamp and/or turn on the BRAKE warning lamp.
The ABCM has a self diagnostic capability. Fault Codes may be stored in the ABCM to be displayed for diagnostic purposes. The ABCM can be
requested to display these codes, if any are present, by entering ABS diagnostic mode. For further information, see DIAGNOSIS AND TESTING
PROCEDURES.
The ABCM is located in the trunk between the rear seat bulkhead and the rear bulkhead trim panel.
The ABCM is a serviceable component.
