FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Inspection Procedure 7

INSPECTION PROCEDURE 7: Faulty ABS Operation

TECHNICAL DESCRIPTION (COMMENT)
The cause depends on driving and road surface conditions, so diagnosis may be difficult. However, if no diagnostic trouble code is set, carry out the following inspection.

TROUBLESHOOTING HINT
The most likely cause for this case is:
^ Malfunction of the brake modulator hydraulic unit

DIAGNOSIS
Check the brake modulator hydraulic unit. If the brake modulator hydraulic unit (integrated with ABS-ECU) is malfunctioning, replace it. Then check that the malfunction symptom is eliminated.