Lost Communication With Totally Integrated Power Module

U0141 - Lost Communication with Totally Integrated Power Module

For a complete wiring diagram, refer to.

• When Monitored: With the ignition ON, battery voltage between 10 and 16 volts, IOD fuse installed, TIPM is configured correctly.

• Set Condition: Bus messages not received from the TIPM for approximately 2 to 5 seconds.






Test Step 1 - Verify DTC Is Active

• Verify the IOD fuse is installed and battery voltage is between 10 and 16 volts before proceeding.

• With the scan tool, read active DTCs.

Is this DTC active?

Yes

• Go to Test Step 2 => [ Test Step 2 - Test for Any of the Following Active DTCs ]

No

• Perform the appropriate Stored Lost Communication test procedure. Refer to => Non-DTC Based Diagnostics.

Test Step 2 - Test for Any of the Following Active DTCs

• With the scan tool, read all active DTCs from all modules.

• Test for TIPM configuration, CAN B or C hardware electrical, VIN Missing/Mismatch, battery or ignition related DTCs.

Does the scan tool display any active DTCs to the conditions listed more than?

Yes

• Perform the appropriate diagnostic procedure, refer to => Non-DTC Based Diagnostics.

No

• Go to Test Step 3 => [ Test Step 3 - Verify that the TIPM is Active on the Bus ]

Test Step 3 - Verify that the TIPM is Active on the Bus

• Turn the ignition ON.

• With the scan tool, select Network Diagnostics.

• Verify that the TIPM is active on the Bus.

Is the TIPM active on the Bus?

Yes

• Go to Test Step 4 => [ Test Step 4 - Test for Additional Communication Related DTCs ]

No

• For the No Response diagnostic procedures, refer to => Non-DTC Based Diagnostics.

Test Step 4 - Test for Additional Communication Related DTCs

• With the scan tool, select Network Diagnostics.

Is there more than one module with active DTCs Logged Against the TIPM?

Yes

• Replace/update the totally integrated power module.

• Perform Body Verification Test. Refer to => Body
Exterior DTC-Based Diagnostics. Body Interior

No

• Replace the anti lock brake module.

• Perform ABS Verification Test. Refer to => Non-DTC
Based Diagnostics. ABS Verification Test