Check AST Circuit

Unplug connectors from control relay, actuator and ABS ECU. Check the following items. If each item is okay, check ABS solenoid relay.

• Check for continuity in White/Red wire between control relay terminal B2 and actuator terminal B3. See Figure and Figure . If there is no continuity, repair White/Red wire.
• Check resistance between actuator terminals B3 and A5. See Figure. If resistance is not 4-6 ohms, replace actuator.
• Check for continuity in Red/White wire between actuator terminal A5 and ABS ECU terminal A6. See Figure and Figure . If there is no continuity, repair Red/White wire.