## ABS Components

#### DTC Troubleshooting (cont'd)

19-105

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

DTC | Appropriate Terminal
| (+) Side | (-) Side
11 (Right-front) | No. 18: FRW (+) | No. 2: FRW (+)
13 (Left-front) | No. 3: FLW (+) | No. 12: FLW (+)
15 (Right-rear) | No. 15: RRW (+) | No. 6: RRW (+)
17 (Left-rear) | No. 5: RLW (+) | No. 14: RLW (+)

ABS CONTROL UNIT 25P CONNECTOR

Wire side of female terminals

Is the resistance between 450 - 2,000 ohms?

YES - Check for loose terminals in the ABS control unit 25P connector. If necessary, substitute a known-good ABS modulator-control unit and recheck.

NO - Go to step 8.

8. 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 control unit and the wheel sensor.

NO - Replace the wheel sensor.

DTC 12, 14, 16, 18: Wheel Sensor (Electrical Noise/Intermittent Interruption)

NOTE: If the ABS indicator comes on because of electrical noise, the indicator goes off when you test-drive the vehicle at 19 mph (30 km/h).

1. Visually check for appropriate wheel sensor and pulsar installation (see table). Measure pulsar-to-sensor clearance. Inspect the pulsars for damage (see page 19-118).

   DTC | Appropriate Terminal
   12 | Right-front
   14 | Left-front
   16 | Right-rear
   18 | Left-rear

Are the wheel sensors and pulsars OK?

YES - Go to step 2.

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

2. Disconnect the ABS control unit 25P connector.
3. Measure the resistance between the appropriate wheel sensor (+) and ( - ) circuit terminals (see table).

   DTC | Appropriate Terminal
   | (+) Side | (-) Side
   12 (Right-front) | No. 18: FRW (+) | No. 2: FRW (+)
   14 (Left-front) | No. 3: FLW (+) | No. 12: FLW (+)
   16 (Right-rear) | No. 15: RRW (+) | No. 6: RRW (+)
   18 (Left-rear) | No. 5: RLW (+) | No. 14: RLW (+)

ABS CONTROL UNIT 25P CONNECTOR

Wire side of female terminals

Is there less than 450 ohms?

YES - Repair short to wire between the appropriate wheel sensor (+) and ( - ) circuits.

NO - Go to step 4.