## ABS Components

#### DTC Troubleshooting (cont'd)

19-72

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

DTC | Appropriate Terminal
(+) Side | (-) Side
12 (Right-front) | No. 5: FRS (+) | No. 4: FRS (+)
14 (Left-front) | No. 7: FLS (+) | No. 6: FLS (+)
16 (Right-rear) | No. 2: RRS (+) | No. 1: RRS (+)
18 (Left-rear) | No. 9: RLS (+) | No. 8: RLS (+)

ABS CONTROL UNIT 31P 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.

4. Check for continuity between the appropriate wheel sensor (+) circuit terminal and other wheel sensor (+) circuit terminals (see table).

   DTC | Appropriate Terminal | Other Terminal
   12 | No. 5: FRW (+) | No. 7 | No. 2 | No. 9
   14 | No. 7: FLW (+) | No. 5 | No. 2 | No. 9
   16 | No. 2: RRW (+) | No. 5 | No. 7 | No. 9
   18 | No. 9: RLW (+) | No. 5 | No. 7 | No. 2

Is there continuity?

YES - Repair short in the wire between the appropriate wheel sensor and the other wheel sensor harnesses.

NO - Clear the DTC, and test-drive the vehicle. If the ABS indicator comes on and the same DTC is indicated, replace the ABS modulator-control unit.

DTC 21: Continuous Operation (Chipped pulsar)

1. Clear the DTC.
2. Test-drive the vehicle at 19 mph (30 km/h) or more.

Does the ABS indicator come on and is DTC 21 indicated?

YES - Go to step 3.

NO - The system is OK at this time.

3. Check the pulsar gear for a chipped tooth.

Is the pulsar OK?

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

NO - Replace the driveshaft or hub unit. (Chipped pulsar gear).