Possible Causes

CW1: RECHECK THE ABS MODULE DTCS

Carry out the ABS self-test.

Record all ABS module DTCs.
Clear the ABS DTCs.
Put the ABS module in sleep mode by performing the following steps:
- With ALL doors closed, set the ignition from ON to OFF.
- Disconnect the diagnostic scan tool.
- Open the door, exit the vehicle and close the door.
- Wait a minimum of 90 seconds for the ABS module to enter sleep mode.
Ignition ON, engine OFF.

Carry out the ABS self-test.

Is any DTC from the DTC Fault Trigger Conditions Table present and active in the ABS module?

Yes	No
Go to CW2.	The concern may have been due to a loose or corroded connector. DISCONNECT and INSPECT the ABS module and PCM connectors. CLEAN OR REPAIR as necessary.

CW3: CHECK THE BOO AND BPS CIRCUITS FOR A SHORT TO GROUND

Measure the resistance between:

(+) ABS Module Connector, Harness Side	(-)
BOO	Ground
BPS	Ground

Yes	No
Go to CW5.	REPAIR the circuit.

CW4: CHECK THE BOO AND BPS CIRCUITS FOR A SHORT TOGETHER

Measure the resistance between:

(+) ABS Module Connector, Harness Side	(-) ABS Module Connector, Harness Side
BOO	BPS

Yes	No
Go to CW5.	REPAIR the circuit.

CW5: CHECK THE BOO AND BPS CIRCUITS FOR A SHORT TO VOLTAGE
NOTE: The following step may set a no communication or invalid data from the ABS module DTC in other modules. Once the repair is complete, carry out a network test and clear the no communication or invalid data DTC.
CW6: VERIFY ALL WIRING CONNECTIONS
- Ignition OFF.
CW7: CHECK FOR CORRECT ABS OPERATION
- ABS Module connector connected. Make sure the connector seats and latches correctly.