ABS Components

DTC Troubleshooting (cont'd)

19-71  

  1. Check the resistance between the appropriate wheel sensor (+) and (-) circuit terminals (see table).

DTC Appropriate Terminal
(+) Side (-) Side
11 (Right-front) No. 5: FRS (+) No. 4: FRS (+)
13 (Left-front) No. 7: FLS (+) No. 6: FLS (+)
15 (Right-rear) No. 2: RRS (+) No. 1: RRS (+)
17 (Left-rear) No. 9: RLS (+) No. 8: RLS (+)

ABS CONTROL UNIT 31P CONNECTOR

Wire side of female terminals

Is the resistance between 450 - 2,000 ohms?

YES - Check for loose ABS control unit 31P connector. If necessary, substitute a known-good ABS modulator-control unit and recheck.

NO - Go to step 8.

  1. Disconnect the harness 2P connector from the appropriate wheel sensor and check the resistance between the (+) and (-) terminals of the wheel sensor.

Is the resistance between 450 - 2,000 ohms?

YES - Repair open in the (+) or (-) circuit wire, or short between the (+) circuit wire and the (-) circuit wire between the ABS modulator-control unit and the wheel sensor.

NO - Replace the wheel sensor.

DTC 12, 14, 16, 18: Wheel Sensor Pulse Signal

NOTE: If the ABS indicator comes on for the reasons described below, the indicator goes off when you test-drive the vehicle at 31 mph (50 km/h).

  • Only the drive wheel rotated
  • The vehicle spun
  • Electrical noise
  1. Visually check for appropriate wheel sensor and pulsar installation and condition (see table).
    DTC Appropriate Wheel Sensor
    12 Right-front
    14 Left-front
    16 Right-rear
    18 Left-rear

Are they installed correctly and not damaged?

YES - Go to step 2.

NO - Reinstall or replace the appropriate wheel sensor or pulsar.

  1. Disconnect the ABS control unit 31P connector.