But if there’s a lot of air inside the solenoid valves, the system will have to be bled using the special Honda ABS tester tool to cycle the solenoids. If air is trapped inside the ABS modulator, the maintenance bleeder screw can also be used to vent air.
#BENDIX ABS FLASH CODES SOFTWARE#
But the scan tool software can’t cycle the solenoids or do the same tests as the dealer tool. One manufacturer has a cartridge for its scan tool that allows these units to read ABS codes on 1994 and newer Honda and Acura cars. However, we’re not aware of any that can plug into these older systems.
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So depending where you go following graduation, you might not use this tester.īut don’t worry, there are various aftermarket scan tools that can read ABS codes on newer Honda and Acura models. Unfortunately, the Honda ABS tester costs $1,000 so it’s unlikely many independent shops will buy such a tool unless it’s an import shop or they do a lot of Honda work. If you can get your hands on one of these dealer tester tools, you can use it to perform six different mode tests that check the operation of the various solenoids in the hydraulic modulator assembly. The tester talks to the ABS module and can be used to perform various diagnostic tests. The pressure stored in the accumulator is now available for ABS braking if needed.įor these older Honda Sumitomo ABS applications, Honda has a special dealer tool (07HAJ-SG0010A) that plugs into a six-pin connector under the front passenger seat. When accumulator pressure reaches maximum pressure, the pump shuts off. The pump draws fluid from the master cylinder reservoir and feeds it into the accumulator. When the ignition is turned on, the ABS control module energizes the pump relay to start the pump if the accumulator pressure switch indicates low pressure. This allows the control piston to return to its normal position, opening the brake circuit cut-off valve. Pressure is reapplied to the brake when the solenoid is de-energized. Pressure is then released from the brake circuit so it can flow back to the reservoir (which also produces pedal feedback for the driver).
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Pump pressure enters the modulator and works against the control piston, which closes a cut-off valve in the brake circuit. This closes the reservoir outlet circuit valve and opens the pump supply to the modulator. When ABS braking is needed, the control unit energizes the normally open solenoid outlet valve in the modulator. So there are separate ABS solenoids in the modulator for each front wheel, but only one ABS solenoid for the rear brake circuit. But it’s a three-channel system that controls both rear wheels as a pair. The Sumitomo ABS system in the 1992 Acura models is a four-wheel ABS system with wheel-speed sensors at each wheel.