Module, Park Assist (PTS)

U0431-IMPLAUSIBLE DATA FROM FCM (TIPM)

For a complete wiring diagram, refer to Electrical Diagrams

Theory of Operation

The messages sent on the CAN bus are distinguished by an identifier (ID). Each CAN ID is defined to contain a certain number of bytes. The Park Assist Module verifies that it has received the proper number of bytes for each ID.

- When Monitored:

- Continuously with the ignition on, one valid CAN ID received at least once, and no U0002-CAN Bus Off Performance DTC present.

- Set Condition:

- When the Park Assist Module detects an incorrect CAN ID from the TIPM.

Possible Causes:

1. CHECK FOR TIPM CAN BUS DTCS

1. With the scan tool, read TIPM DTCs.

Are there any TIPM CAN BUS DTCS present?

Yes

- Perform the appropriate diagnostic procedure. Refer to Transfer Case

No

- Using the schematics as a guide, check the Park Assist Module terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace the Park Assist Module.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test