A3 Check Resistance at Control Module

- Key OFF.

- Anti-lock brake control module disconnected.

- Measure the resistance between the following wire(s) in question at the anti-lock brake control module connector leading to the brake anti-lock sensor(s):

Brake Anti-Lock Sensor Wires

Left Front Brake Anti-Lock Sensor "W" (circuit 410) and "R" (circuit 411)
Right Front Brake Anti-Lock Sensor "Y" (circuit 412) and "O" (circuit 413)
Left Rear Brake Anti-Lock Sensor "Y/GN" (circuit 414) and "Y/BL" (circuit 415)
Right Rear Brake Anti-Lock Sensor "GN" (circuit 416) and "BL" (circuit 417)

- Is the resistance reading 1600-2000 ohms?

YES -- Go to A5. A5 Check Signal at Control Module Connector

NO -- Go to A4. A4 Check Resistance at Sensor(s)