ABS Does Not Operate

ABS Does Not Operate.

DETECTING CONDITION:

INSPECTION PROCEDURES
DTC INSPECTION
1. Connect the scan tool with the data link connector and turn the ignition switch ON.
2. Verify that the normal code is output.
Is the normal code output?
NO
Check the power source circuit.
YES
Erase the DTC and recheck using scan tool.

CHECK THE POWER SOURCE CIRCUIT.
1. Disconnect the connector from the ESC control module.
2. Turn the ignition switch ON, measure the voltage between terminal 31 of the ESC control module harness side connector and body ground.
Specification approximately B+
Is the voltage within specification?
YES
Check the ground circuit.
NO
Check the harness or connector between the fuse (10A) in the engine compartment junction block and the ESC control module. Repair if necessary.





CHECK THE GROUND CIRCUIT.
1. Disconnect the connector from the ESC control module.
2. Check for continuity between terminals 45, 46 of the ESC control module harness side connector and ground point.
Is there continuity?
YES
Check the wheel speed sensor circuit.
NO
Repair an open in the wire and ground point.





CHECK THE WHEEL SPEED SENSOR CIRCUIT
Refer to the DTC troubleshooting procedures.
Is it normal?
YES
Check the hydraulic circuit for leakage.
NO
Repair or replace the wheel speed sensor.

CHECK THE HYDRAULIC CIRCUIT FOR LEAKAGE.
Refer to the hydraulic lines.
Inspect leakage of the hydraulic lines.
Is it normal?
YES
The problem is still occurring, replace the ESC control module.
NO
Repair the hydraulic lines for leakage.