A5 Check Signal at Control Module Connector

- Key OFF.

- Anti-lock brake control module disconnected.

- Multimeter on AC scale.





- Measure the voltage between the following wires at the anti-lock brake control module connector leading to the anti-lock sensor(s) in question while rotating wheel approximately 60 rpm (approximately one wheel turn per second):

Anti-Lock Sensor Wires

LH Front "BK/W" and "O/W"
RH Front "BK/R" and "O"
LH Rear "BK/BL" and "R/BL"
RH Rear "BK/O" and "W"


- Is the voltage reading between 0.25 and 3.0 volts AC?

YES -- Go to A7. A7 Check Brake ON/OFF (BOO) Switch Circuit

NO -- Go to A6. A6 Inspect ABS Sensor(s) and Indicator(s)