Skip to main content
ABS DTC Troubleshooting: 12-21, 14-21, 16-21, 18-21

DTC 12-21:
 Right-front Wheel Speed Sensor Installation Error
DTC 14-21:
 Left-front Wheel Speed Sensor Installation Error
DTC 16-21:
 Right-rear Wheel Speed Sensor Installation Error
DTC 18-21:
 Left-rear Wheel Speed Sensor Installation Error
  1. Test-drive the vehicle. Drive the vehicle at 10 km/h (7 mph) or more.
    NOTE: Drive the vehicle on a straight section of road, not on a lift.
  1. Check the RF, LF, RR, LR WHEEL SPD in the ABS DATA LIST with the HDS.
Are all four values the same?
YES -
Intermittent failure, the system is OK at this time. Check for loose terminals between the wheel speed sensor 2P connector and the ABS modulator-control unit 25P connector. Refer to intermittent failures troubleshooting.
NO -
Go to Step 3 .
  1. Turn the ignition switch to LOCK (0).
  1. DTC
    Appropriate Wheel Speed Sensor
    12-21
    Right-front
    14-21
    Left-front
    16-21
    Right-rear
    18-21
    Left-rear

Is the wheel speed sensor installation OK?
YES -
NO -