NO.4 A MALFUNCTION IN THE SYSTEM EVEN THOUGH THE ABS WARNING LIGHT AND BRAKE SYSTEM WARNING LIGHT ARE NOT ILLUMINATED [ANTILOCK BRAKE SYSTEM (ABS)]
id040308109300
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4 |
A malfunction in the system even though the ABS warning light and brake system warning light are not illuminated |
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POSSIBLE CAUSE
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• Mechanical malfunction in system.
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Diagnostic procedure
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STEP |
INSPECTION |
ACTION |
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1
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CONFIRM ABS HU/CM DTC
• Retrieve the ABS HU/CM DTC using the M-MDS (IDS).
• Are any DTCs present?
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Yes
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Go to the applicable DTC inspection.
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No
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Go to the next step.
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2
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VERIFY SOLENOID VALVE OPERATION
• Switch the ignition off.
• Connect the M-MDS (IDS) to the DLC-2.
• Switch the ignition ON (engine off).
• Access the active command mode for the solenoid valve using the M-MDS (IDS).
• Does the solenoid valve operate?
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Yes
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Inspect the conventional brake system.
If there is a malfunction:
• Repair or replace any malfunctioning parts according to the inspection result.
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No
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Repair or replace any malfunctioning parts according to the inspection result.
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