U0431-00

U0431-00 IMPLAUSIBLE DATA RECEIVED FROM IPM (FCM/TIPM)



- When Monitored:
With the ignition on for five seconds, , and

No CAN bus circuit error conditions present.

No lost communication with Totally Integrated Power Module (TIPM) conditions present.

No system undervoltage or overvoltage condition present.

- Set Condition:
The Integrated Trailer Brake Module (ITBM) is receiving implausible data from the TIPM.





1. DTC IS ACTIVE

NOTE: Diagnose all CAN C and CAN Interior bus communication DTCs before continuing.

NOTE: This DTC must be active for the results of this test to be valid.

1. Ignition on, engine not running.
2. With the scan tool, record and erase DTCs.
3. Cycle the ignition switch from off to on.
4. With the scan tool, read DTCs.

Is the status Active for this DTC?

Yes

- Go To 2

No

- Go To 3

2. CHECK FOR TOTALLY INTEGRATED POWER MODULE (TIPM) DTCS
1. With the scan tool, read DTCs in the TIPM.

Are there any TIPM DTCs present?

Yes

- Testing and Inspection Perform the appropriate diagnostic procedure.

No

- Replace the Integrated Trailer Brake Module (ITBM).
- Perform the ITBM VERIFICATION TEST. Integrated Trailer Brake Module (ITBM) Verification Test.

3. INTERMITTENT WIRING HARNESS AND CONNECTORS
1. The conditions necessary to set this DTC are not present at this time.
2. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
3. Wiggle test the wiring harness and connectors while monitoring the scan tool data relative to this circuit.
4. Look for the data to change or for the DTC to reset during the wiggle test.

Were any problems found?

Yes

- Repair as necessary.
- Perform the ITBM VERIFICATION TEST. Integrated Trailer Brake Module (ITBM) Verification Test.

No

- Test complete, the condition or conditions that originally set this DTC are not present at this time.