EA4 NTC 0x0E1 Rack End of Travel Storage Fault

Nexteer Confidential

NTC Overview
NTC 0x0E1.0

Description:

When Software Rack Limiter (SRL) is enabled, SF011A receives Handwheel Angle End of

travel Clockwise and Counter Clockwise signals (Signal 0 and Signal 1) and its availability

status from CM650 and CM660.

The NTC will be set in SF011A when Cw and Ccw Eot signals are not available or if signals do

not correlate or if signals are out of range.

Diagnostic Overview:

 The NTC 0x0E1 will be set when any one of the following conditions occur:

1. 1..When Eot Cw and Ccw signals (Signal 0 an Signal 1) are not available for 500 msec, Signal Available Fault ( Bit 0 of NTC 0X0E1) is set and NTC is set to “FAILED”.   

1. 2..When Eot Cw and Ccw signals are available but either of Cw or Ccw signals do not correlate each other then Correlation Fault ( Bit 1 of NTC 0X0E1) is set and NTC is set to “FAILED” instantaneously. 

1. 3..When Eot Cw and Ccw signals are available but either of Cw or Ccw Eot signal is out of range then Out of Range Fault ( Bit 2 of NTC 0x0E1) is  set and NTC is set to “FAILED” instantaneously. 

1. 4..NTC 0x0E1 is set to PASS when Cw and Ccw Eot are both available, within range and correlate each other. 

Typical Fault Response:  

 -   Response for this diagnostic is F3

Probable Sources
(Most to Least Probable):

• • • Wrong C-factor cal set 

    • Connection to control module (no connection) 

    • Sensor fault 

    • Control module interface circuit failure