DTC 09

Fig. 17 Motor Relay Inspection:

1. Turn ignition switch to Off position, then disconnect ABS control unit connector.
2. Disassemble ABS control unit connector, then measure resistance between control unit connector terminals 17 and 28. Resistance should be 45-55 ohms.
3. Disconnect connectors from hydraulic unit.
4. Measure resistance between hydraulic unit connector F43 terminal 2 and connector R1 terminal 4. Resistance should be 1 Mohm minimum.
5. Remove motor relay, then attach tester probes as shown in Fig. 17. Resistance should be 0 ohms when 12 volts are applied or 1 Mohms when no voltage is applied.
6. Disconnect connector from hydraulic unit.
7. Measure resistance between hydraulic unit terminals 5 and 6. Resistance should be 45-55 ohms.
a. When resistance checks out unsatisfactory, check relay as a single unit. If resistance checks out satisfactory, replace hydraulic unit. If resistance checks out unsatisfactory, repair harness connector between ABS control unit and hydraulic unit.
8. Disconnect connectors from ABS control unit and hydraulic unit.
9. Measure resistance between hydraulic unit connector R1 terminal 5 and control unit connector terminal 28. Resistance should be 0 ohm.
10. Measure resistance between hydraulic unit connector R1 terminal 6 and control unit connector terminal 17. Resistance should be 0 ohm.
11. Measure resistance between hydraulic unit connector R1 terminal 5 and ground. Resistance should be 1 Mohm minimum.
12. Measure resistance between hydraulic unit connector R1 terminal 7 and ground. Resistance should be 1 Mohm minimum.
13. Turn ignition switch to On position, then measure voltage between hydraulic unit connector F43 terminal 2 and ground. Voltage should be 10-12 volts.