U0146

U0146 - Lost Communication With Central Gateway (TIPM)

For a complete wiring diagram, refer to.

• When Monitored: Continuously when the ignition is on. The battery voltage between 10.0 and 16.0 Volts. Ignition Off Draw (IOD) fuse installed. Totally Integrated Power Module (TIPM) is configured correctly.

• Set Condition: Bus messages not received from the Totally Integrated Power Module (TIPM) for approximately two to five seconds.






Test Step 1 - VERIFY DTC IS ACTIVE

• Make sure the IOD fuse is installed and the battery is fully charged before proceeding.

• Turn the ignition on.

• With the scan tool, read the active DTCs.

Does the scan tool display active: U0146-LOST COMMUNICATION WITH CENTRAL GATEWAY?

Yes

• Refer to => Electrical Equipment DTC Based Diagnostics and perform the U0141-Lost Communication with IPM (FCM/TIPM) diagnostic procedure. U0141

No

• perform the Stored Lost Communication DTCs diagnostic procedure. Stored Lost Communication DTCs Refer to => Non-DTC Based Diagnostics.