DIAGNOSTIC CODES
COMPONENT CONDITION SPN FMI
Gear Sensor Signal Data Erratic, Intermittent Or
Incorrect
523 2
Voltage Above Normal, Or
Shorted To High Source
523 3
Voltage Below Normal, Or
Shorted To Low Source
523 4
Abnormal Update Rate 523 9
ECU Memory Bad Intelligent Device Or
Component
628 12
Out Of Calibration 628 13
Calibration Out Of Calibration 630 13
Crankshaft Position
Sensor
Data Erratic, Intermittent Or
Incorrect
636 2
Abnormal Frequency Or Pulse
Width Or Period
636 8
Injector 1 (Front)
(MAG) (SDI Port
Injector)
Voltage Above Normal, Or
Shorted To High Source
651 3
Voltage Below Normal, Or
Shorted To Low Source
651 4
Current Below Normal Or Open
Circuit
651 5
Fan Relay Driver
Circuit
Voltage Above Normal, Or
Shorted To High Source
1071 3
Voltage Below Normal, Or
Shorted To Low Source
1071 4
Current Below Normal Or Open
Circuit
1071 5
63
FEATURES AND CONTROLS