32 Rev-5 Dec 2, 2019
DTC List – Continued
DTC
Fault Description
MIL
Flash
Code
831
Fuel pressure sensor signal indicates higher pressure than expected
831
832
Fuel pressure sensor signal indicates lower pressure than expected
832
841
Fuel pressure sensor voltage out of range high, normally set if the pessure
signal wire has become shorted to power or the SECM input circuit has
failed
841
842
Fuel pressure sensor voltage out of range low, normally set if the pessure
signal wire has become shorted to ground, disconnected, or the SECM
input circuit has failed
842
851
Sensor Air Calibration lower limit reached before calibration achieved
851
852
Sensor Air Calibration correction is has adjusted to it's maximum limit
852
853
Sensor Air Calibration upper limit reached before calibration achieved
853
854
Sensor Heater duty cycle lower limit reached and sensor hasn't reached
set point temperature
854
855
Sensor Heater duty cycle upper limit reached and sensor hasn't reached
set point temperature
855
856
Sensor Temperature Set Point not reached after a specified period of time
856
911
Pre-catalyst O2 sensor voltage out of range low, sensor signal shorted to
ground
911
921
Pre-catalyst O2 sensor voltage out of range high, sensor signal shorted to
power
921
951
Trim valve command reached the lower duty cycle limit for the specified
time limit, fuel system is unable to reach the desire PHI setpoint, it could
be rich or lean depending on trim valve configuration
951
961
Trim valve command reached the upper duty cycle limit for the specified
time limit, fuel system is unable to reach the desire PHI setpoint, it could
be rich or lean depending on trim valve configuration
961
991
Service Interval 1 has been reached
991
992
Service Interval 2 has been reached
992
993
Service Interval 3 has been reached
993
994
Service Interval 4 has been reached —time to replace HEGO sensors
994
995
Service Interval 5 has been reached —time to replace engine timing belt
995
Summary of Contents for NA428
Page 2: ...202890 Rev 5 Dec 2 2019...
Page 6: ...3 Rev 5 Dec 2 2019 Spare Page...
Page 47: ...44 Rev 5 Dec 2 2019 Notes...
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