ABS Does Not Operate
ABS Does Not OperateDETECTING 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 system is operating to specifications.
Is the system operating to specifications?
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 28 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 1,4 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 the system operating to specifications?
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 the system operating to specifications?
YES
^ The problem is still occurring, replace the ESC control module.
NO
^ Replace the leaking hydraulic lines.