U0431

U0431-IMPLAUSIBLE DATA RECEIVED FROM FCM

WHEN MONITORED
Park Assist Module supply voltage between 9-16 volts. Ignition in Run/Start.

SET CONDITION
PRNDL = 7h, or vehicle speed greater than 511 km/hr.

POSSIBLE CAUSES
- CAN B open or shorted
- Front control module
- Park assist module

DIAGNOSTIC TEST

1. U0431-IMPLAUSIBLE DATA RECEIVED FROM FCM
Turn the ignition on.
With the scan tool, record and erase Park Assist Module DTCs.
Wait 30 seconds.
With the scan tool, read Park Assist Module DTCs.

Q: Is DTC: U0423-IMPLAUSIBLE DATA RECEIVED FROM CLUSTER/CCN active?

YES: Go To 2
NO: The condition that caused this code to set is not present at this time. Check for an intermittent condition by inspecting the related wiring harness for chaffed, pierced, pinched, and partially broken wires. Also inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

2. U0019-NO COMMUNICATION ON THE CAN B BUS CIRCUIT ALSO ACTIVE
With a scan tool check for DTCs in the FCM.

Q: Is the U0019-NO COMMUNICATION ON THE CAN B BUS CIRCUIT active at this time?

YES: Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
NO: Replace and program the Park Assist Module. Perform BODY VERIFICATION TEST - VER 1. Body Verification Test