ABS Does Not Operate

Detecting condition






Inspection procedures
DTC Inspection
1. Connect the GDS with the data link connector and turn the ignition switch ON.
2. Verify that the normal code is output.
3. Is the normal code output?






Check the power source circuit
1. Disconnect the connector from the ABS control module.
2. Turn the ignition switch ON, measure the voltage between terminal 3 of the ABS control module harness side connector and body ground.

Specification:approximately B+


3. Is the voltage within specification?










Check the ground circuit
1. Disconnect the connector from the ABS control module.
2. Check for continuity between terminals 25, 26 of the ABS control module harness side connector and ground point.
3. Is there continuity?










Check the wheel speed sensor circuit
1. Refer to the DTC troubleshooting procedures.
2. Is it normal?






Check the hydraulic circuit for leakage
1. Refer to the hydraulic lines.
2. Inspect leakage of the hydraulic lines.
3. Is it normal?