EA4 NTC Handwheel Angle Vehicle Center Trim Fault

Slide 1

NTC Overview
NTC HwAgVehCentrTrimVld

Description:

Handwheel Angle Vehicle Center Trim provides a service to update an NVM value that is the Vehicle Center Trim. When there isn’t a valid value for Vehicle Center Trim, a non-debounced diagnostic is set.

Diagnostic Overview:

 The NTC HwAgVehCentrTrimVld will be set when any one of the following conditions occur:

  1. 1..When HwAgTrimData.TrimPrfmd is False, the Ntc Status will be set to Failed. 

  2. 2..When HwAgTrimData.TrimPrfmd is True, the Ntc Status will be set to Passed. 

Typical Fault Response:  

 -   Response for this diagnostic is F3

Probable Sources
(Most to Least Probable):

      • The service to update the Vehicle Center Trim hasn’t been performed. 

      • The Vehicle Center Trim value has been cleared. 

 

Initialization

X

Periodic

X

Event

X

Date

Revision

Initials

19may2016

Initial Release

PTL

   
   
   
   
   
   
   
   
   

Description of Unusual Event setting NTC

Root Cause / Explanation

  
  
  

Date

FDD & Rev

Modifications to Diagnostic Function

19May2016

SF053A 1.3.0

Initial version with the diagnostic

   
   
   

Algorithm Changes / Lessons Learned / Revision Log

Last modified October 12, 2025: Initial commit (312cf32)