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ABS <4WD> - Troubleshooting 35B-15 INSPECTION CHART FOR TROUBLE SYMPTOMS Trouble symptoms Inspection procedure No. Reference page Communication between the MUT-II and the whole system is not possible. 1 35B-16 Communication between the MUT-II and the ABS-ECU is not possible. 2 35B-17 When the ignition key is turned to “ON” (engine stopped), the ABS warning lamp does not illuminate. 3 35B-18 Even after the engine is started, the ABS warning lamp remains illuminated. 4 35B-18 In the inspection with MUT-II service data, the parking brake switch is not turned ON or turn OFF. 5 35B-19 The neutral position learning of the steering wheel sensor is not finished. 6 35B-20 Faulty ABS operation 7 35B-21 Caution 1. If steering movements are made when driving at high speed, or when driving on road surfaces with low frictional resistance, or when passing over bumps, the ABS may operate even though sudden braking is not being applied. Because of this, when getting information from the customer, check if the problem occurred while driving under such conditions as these. 2. During ABS operation, the brake pedal may vibrate or may not be able to be depressed. Such phenomena are due to intermittent changes in hydraulic pressure inside the brake line to prevent the wheels from locking and is not an abnormality. |