Pinpoint Test U: B1087:57, U0300:4A

Normal Operation and Fault Conditions

REFER to: Handles, Locks, Latches and Entry Systems - Vehicles With: One-Touch Open and Close Front Windows - System Operation and Component Description .

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
DDM B1087:57	LIN Bus "A": Invalid/Incompatible Software Component	Sets when the DDM detects an internal software issue.
DDM U0300:4A	Internal Control Module Software Incompatibility: Incorrect Component Installed	Sets when the DDM detects an internal software issue.
PDM B1087:57	LIN Bus "A": Invalid/Incompatible Software Component	Sets when the PDM detects an internal software issue.
PDM U0300:4A	Internal Control Module Software Incompatibility: Incorrect Component Installed	Sets when the PDM detects an internal software issue.

Possible Sources

DDM
PDM

U1 CARRY OUT THE PMI (PROGRAMMABLE MODULE INSTALLATION)

Carry out the PMI

Using a diagnostic scan tool, clear all Diagnostic Trouble Codes (DTCs).

Using a diagnostic scan tool, perform the DDM or PDM self-test.

Did the DTC return?

Yes	INSTALL a new DDM or PDM. REFER to: Front Door Module (FDM) .

No	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.