Diagnostic Test

CHECK RELATED HARNESS CONNECTIONS

Disconnect the ABS Module harness connector.
Disconnect all related in-line harness connections (if equipped).
Disconnect the related component harness connectors.
Inspect harness connectors, component connectors, and all male and female terminals for the following conditions:
- Proper connector installation.
- Damaged connector locks.
- Corrosion.
- Other signs of water intrusion.
- Weather seal damage (if equipped).
- Bent terminals.
- Overheating due to a poor connection (terminal may be discolored due to excessive current draw).
- Terminals that have been pushed back into the connector cavity.
- Perform a terminal drag test on each connector terminal to verify proper terminal tension.
Repair any conditions that are found.
Connect the ABS Module harness connector. Be certain that the harness connector is fully seated and the connector lock is fully engaged.
Connect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
Connect the related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged.
With the scan tool, erase DTCs.
WARNING:
To avoid possible serious or fatal injury, check brake capability is available before road testing.
Using the recorded Event and Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
With the scan tool, read ABS Module DTCs.
Did the DTC return?

Yes

NOTE:
For this failure it is necessary to replace both the ABS Module and the HCU as a complete unit.
- Replace the Integrated Control Unit (ICU) in accordance with the Service Information. Refer to INTEGRATED CONTROL UNIT (ICU), REMOVAL AND INSTALLATION .
- Perform ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
No
- Perform ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
- Test complete.