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):
LH Front Anti-Lock Sensor "BK/W" and "O/W"
RH Front Anti-Lock Sensor "BK/R" and "O"
LH Rear Anti-Lock Sensor "BK/BL" and "R/BL"
RH Rear Anti-Lock Sensor "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)