U0431 - Implausible Data Received From FCM
For a complete wiring diagram, refer to appropriate Wiring Diagram
- >>When Monitored:<< Whenever the battery is connected.
- >>Set Condition:<< When the module receives mixed messages from the TIPM, this code will set.
| Possible Causes |
|---|
| TOTALLY INTEGRATED POWER MODULE |
| POWER SLIDING DOOR MODULE |
Test Step 1 - DTC Present
- With the scan tool, record and erase DTCs.
- Cycle the ignition switch from On to Off.
- Wait 30 seconds.
- Turn the ignition ON.
- With the scan tool, check for DTCs.
Does the scan tool display U0431 - Implausible Data Received from FCM?
No
- Using the wiring diagram/schematic as a guide, inspect the wiring and connectors for an intermittent condition.
- Perform the Body Verification Test. Refer to BODY VERIFICATION TEST .
Yes
- Go to Test Step 2 U0431 - IMPLAUSIBLE DATA RECEIVED FROM FCM => Test Step 2 - Power Sliding Door Module
Test Step 2 - Power Sliding Door Module
- With the scan tool, check for DTCs in several other modules.
Does the scan tool display U0431 - Implausible Data Received From FCM, in other modules?
No
- Replace the power sliding door module. Refer to POWER SLIDING DOOR MODULE .
- Perform the Body Verification Test. Refer to BODY VERIFICATION TEST .
Yes
- Replace the TIPM. .
- Perform the Body Verification Test. Refer to BODY VERIFICATION TEST .