60 ABS 5.3 SYSTEM TEST Checklist Test step Test of demand value 1 Power supply, low voltage condition 12V -1.7 V +2.5 V 2 ABS warning lamp on, after a couple of sec. 3 EBD warning lamp on, after a couple of sec. 4 Brake light switch - not actuated 0 V - actuated U Batt 5 Wheel speed sensor (Line Fault) - sensor monitoring Ri = 1,6 K Ohm +- 320 Ohm by 25 degree C 6 Wheel speed sensor - sensor signal minimum value: 120 mVpp by 2.75km/h 7 Toothed gear correct to specification Front axle: 51 teeth Rear axle : 51 teeth 8 Diagnosis - K line mΩ -> flow resistance - Ground mΩ -> flow resistance + Power supply U Batt 9 Ground for pump motor mΩ -> flow resistance and diff. are required 10 Ground for solenoid mΩ -> flow resistance valve and ECU and diff. are required 11 Acceleration sensor (value by horizontal plane and static position) -Output voltage (K27/28, pin 2 → pin 1) U = 2.500 V ±0,75 V -Supplay voltage (K27/28, pin 3 → pin 1) U = 5 V ± 0,25 V -Ground (K27/28, pin 1 ⇔ connector K1,pin15) U ≤ 0,25 V
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