U0447

U0447-IMPLAUSIBLE DATA RECEIVED FROM CENTRAL GATEWAY

For a complete wiring diagram Refer to Diagrams/Electrical


- When Monitored:
Continuously with the ignition on, one valid CAN message received at least once, and no U0002-CAN C Bus Off Performance DTC present.

- Set Condition:
When the Automatic Sway-Bar System Module detects an incorrect CAN message from the Totally Integrated Power Module (TIPM).








Diagnostic Test


1. CHECK FOR DTC U0401-IMPLAUSIBLE DATA RECEIVED FROM TIPM
NOTE: This DTC must be active for the results of this test to be valid.

Turn the ignition on.
With the scan tool, record and erase DTCs.
Cycle the ignition switch from off to on.
With the scan tool, read DTCs.
Does the scan tool display: U0401-IMPLAUSIBLE DATA RECEIVED FROM ECM/PCM?

Yes


- Go To 2


No


- Perform the ASBS Intermittent Condition diagnostic procedure.
- Refer to the ASBS-INTERMITTENT CONDITION TEST.Testing and Inspection.



Diagnostic Test


2. CHECK IF TIPM CAN BUS DTCs ARE PRESENT
With the scan tool, read TIPM DTCs.
Are there any TIPM CAN BUS DTCs present?

Yes


- Diagnose and repair the DTC(s).
- Perform ASBS VERIFICATION TEST.ASBS Verification Test


No


- Go To 3




3. CHECK IF ENGINE DTCs ARE PRESENT
With the scan tool, read Engine DTCs.
Are there any Engine DTCs present?

Yes


- Diagnose and repair the DTC(s).
- Perform ASBS VERIFICATION TEST.ASBS Verification Test


No


- Using the schematics as a guide, check the Automatic Sway-Bar System Module pins, terminals, and connectors for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace the Final Drive Control Module.
- Perform ASBS VERIFICATION TEST.ASBS Verification Test