Repair Guideline Tester-Display No. Work Instructions Set Value Fault Codes Connection Troubleshooting : Set Value : Causation : 32 ABS REPAIR GUIDELINES 6 FR Wheel Sensor: Ignition on no interrupted the C1203 FR sensor (pin5) Line fault With vehicle jacked up, speed wheel Ground FR(pin4) slowly turn FR wheel by sensor hand OR Drive vehicle (test bench) more than 2 km/h Important Notes : • Ignition OFF before the plug connector will divided from the speed wheel sensor • Don’t exchange the connection- pins of the speed wheel sensor inside the 26pin connector. • Ignition on • ABS,EBD and brake • Short circuit Speed Wheel Sensor control warning lamps Unit illuminate • Line rupture • Ignition off • Sensor fault • Disconnect the 26pin connector of the control-unit and the connector of the speed wheel sensor • Connect ohmmeter between plug K1 • Correct correlation • Exchange sensor lines and terminals pin 5 and 4 lines WSS(FR) and Wire lines(FR) • Check internal resistance from ECU • Internal-resistance • Repair and exchange the wiring harness (FR) to wheel speed connector (FR). (1,00KOhm to and connectors when possible 1,90Kohm) • Move cable around by hand • Line no interrupt • Exchange wheel speed sensor FR especially in area of wheelarch. Observe continues display of reading. • Connect ohmmeter between plug K1 • Greater 100 Kohms • Repair and exchange the wiring harness. wheel speed sensor terminals FR & to ground or positive.
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