Pinpoint Test AU: Invalid Data Received

NOTE: The Inverter System Controller (ISC) is referred to as the SOBDMC (Secondary On-Board Diagnostic Control Module C) in the scan tool.

Normal Operation and Fault Conditions

REFER to: Electric Powertrain Control - System Operation and Component Description .

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
SOBDMC U0401:00	Invalid Data Received from ECM/PCM A: No Sub Type Information	This DTC sets when invalid network data is received from the PCM.
SOBDMC U0405:00	Invalid Data Received From Cruise Control Module: No Sub Type Information	This DTC sets when invalid network data is received from the CCM.
SOBDMC U0412:00	Invalid Data Received From Battery Energy Control Module 'A': No Sub Type Information	This DTC sets when invalid network data is received from the BECM.
SOBDMC U0412:92	Invalid Data Received From Battery Energy Control Module 'A': Performance Or Incorrect Operation	This DTC sets when invalid network data is received from the BECM, while vehicle is plugged into a charger.
SOBDMC U0418:00	Invalid Data Received from Brake System Control Module 'A': No Sub Type Information	This DTC sets when invalid network data is received from the ABS module.
SOBDMC U0452:00	Invalid Data Received From Restraints Control Module: No Sub Type Information	This DTC sets when invalid network data is received from the RCM.
SOBDMC U0515:86	Invalid Data Received From Remote Function Actuation Module: Signal Invalid	This DTC sets when invalid network data is received from the RFA.
SOBDMC U053B:86	Invalid Data Received From Image Processing Module A: Signal Invalid	This DTC sets when invalid network data is received from the IPMA.

Possible Causes

Communications network concern
Suspect Module

AU1 CHECK FOR RECENT SERVICE ACTIONS FOR THE MODULE IN QUESTION

NOTE: The Inverter System Controller (ISC) is reporting that another module is offline. Inverter System Controller (ISC) replacement would NOT be recommended for any of these Diagnostic Trouble Codes (DTCs) as it will not fix the vehicle's issue. "Suspect Module" refers to the module that is offline, NOT the Inverter System Controller (ISC).

If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

Check the vehicle service history for recent service actions related to the module in question and the Inverter System Controller (ISC). If recent service history is found:
- Verify correct replacement module was installed, vehicle parts build list may be used to verify correct part fitment.
- Verify the configuration of replacement module was correct, re-configure module using as-built data if prior configuration is suspect.
- Verify the module was not obtained from a like vehicle and installed into vehicle with concern, return the swapped module to source vehicle and obtain new replacement module.

Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to AU2

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.

AU2 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE MODULE SENDING INVALID DATA
- Ignition ON.
- Using a diagnostic scan tool, carry out the self-test for the module in question sending the invalid data.
Are any DTC s present from the module sending the invalid data?

Yes DIAGNOSE the module sending the invalid data. REFER to the appropriate service information.

No DIAGNOSE the observable symptom.