Component Inspection

Component Inspection

1. Ignition "OFF".
2. Disconnect wheel speed sensor connector.
3. Measure resistance between terminal "1,2" of the wheel speed sensor connector.
A. Specification : Approx. 1.385 kOhms ±110 Ohms




4. Is the measured resistance within specifications?
YES
1) 1) Check for improper installation of wheel speed sensor. If NG, repair as necessary and then go to "Verification of vehicle Repair" procedure.
2) Check for damage of rotor teeth or wheel bearing. If NG, repair as necessary and then go to "Verification of vehicle Repair" procedure.
3) Measure air gap between wheel speed sensor and rotor. If NG, repair as necessary and then go to "Verification of vehicle Repair" procedure.
Specification : Air-gap : 0.2-1.3 mm




4) Substitute with a known-good HECU and check for proper operation. If problem is corrected, replace HECU and then go to "Verification of Vehicle Repair" procedure.
NO
1) Substitute with a known-good Wheel speed sensor and check for proper operation. If problem is corrected, replace Wheel speed sensor and then go to "Verification of Vehicle Repair" procedure.