Integra (RS, LS) L4-1834cc 1.8L DOHC PFI (1995)
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Fail-safe function
When an abnormality is detected in the ABS control system self-diagnosis, the solenoid operations are suspended by turning off the two fail-safe relays.
This disconnects the ground circuits of all the solenoid valves to prevent ABS operation. Under these conditions, the braking system functions just as an
ordinary one.
Fail-safe relay
The fail-safe relay's terminal side contact is normally open. When there is continuity at the relay coil, the fail-safe relay is closed, thereby connecting the
ground circuit to the solenoid valve.
ABS indicator light
The ABS control unit turns the ABS indicator light on when one or more of the following abnormalities are detected. This is only a partial list.
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When the operating time of the motor in the power unit exceeds the specified period.
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When vehicle running time exceeds 30 seconds without releasing the parking brake.
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When absence of speed signals from any of the four wheel sensor is detected.
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When the activation time of all solenoids exceeds a given time, or an open circuit is detected in the solenoid system.
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When solenoid output is not detected in the simulated ABS operation when the engine is started or the vehicle is driven.
To check the indicator light bulb, the light is activated when the ignition switch is first turned on. The light goes off after the engine is started if there is
no abnormality in the system.
