RAM 1500 Van V6-239 3.9L Magnum (1995)
Electronic Brake Control Module: Description and Operation
With Four Wheel Antilock Brakes
PURPOSE
The Controller - Antilock Brake (CAB) is mounted under the hood, separately from the valve body, and has microprocessor circuits that:
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Monitor the brake switch input to tell whether or not to prepare for possible antilock braking.
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Monitor the wheel speed sensor inputs to determine when a wheel is tending to lock up.
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Operate the integral control unit assembly during antilock braking based on comparing the speed sensors to information programmed in
memory.
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Detect ABS system related problems and take diagnostic action.
OPERATION
The CAB will disable antilock control and set a soft ignition latched trouble code if it detects one of the following conditions with itself:
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(71) RAM Read/Write
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(72) ROM Checksum
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(73) Watchdog
