PERFORM ACTIVE TEST USING INTELLIGENT TESTER (BUZZER)
INSPECT SKID CONTROL BUZZER (POWER SOURCE TERMINAL)
CHECK HARNESS AND CONNECTOR (SKID CONTROL BUZZER - SKID CONTROL ECU)
Description
The skid control buzzer sounds while the accumulator pressure is abnormally low or an abnormality causing low fluid pressure occurs.
Wiring diagram
Inspection procedure
NOTICE:
When replacing the master cylinder solenoid, perform zero point calibration .
1.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (BUZZER) |
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Connect the intelligent tester to the DLC3.
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Turn the ignition switch to ON and turn the intelligent tester on.
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Enter the following menus: Chassis / ABS/VSC/TRC / Active Test.
ABS/VSC/TRC Tester Display Test Part Control Range Diagnostic Note Buzzer Skid control buzzer Buzzer ON/OFF The buzzer can be heard.
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Check that the buzzer sounds/stops when turning the skid control buzzer on/off by using the intelligent tester.
Result Result Proceed to Buzzer sounds/stops A Buzzer does not sound or sounds constantly B
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B | |
2.INSPECT SKID CONTROL BUZZER (POWER SOURCE TERMINAL) |
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Disconnect the E5 skid control buzzer connector.
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Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection Switch Condition Specified Condition E5-2 (IG1) - Body ground Ignition switch ON 11 to 14 V
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OK | |
3.INSPECT SKID CONTROL BUZZER |
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Apply battery voltage to the skid control buzzer, and check that the buzzer sounds.
OK:
Measurement Condition Specified Condition Battery positive (+) voltage - Terminal 2 (IG1) Skid control buzzer sounds. Battery negative (-) voltage - Terminal 1 (BZ)
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OK | |
4.CHECK HARNESS AND CONNECTOR (SKID CONTROL BUZZER - SKID CONTROL ECU) |
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Disconnect the A24 skid control ECU connector.
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Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection Condition Specified Condition A24-30 (BZ) - E5-1 (BZ) Always Below 1 ? A24-30 (BZ) - Body ground Always 10 k? or higher Result Result Proceed to NG A OK LHD B RHD C
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A | |
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