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DIAGNOSTIC CODES
COMPONENT CONDITION SPN FMI
Error in Engine Speed
Computation
31
Gear Sensor Signal
Data Erratic,
Intermittent Or
Incorrect
523
2
Voltage Above
Normal, Or Shorted
To High Source
3
Voltage Too Low 4
Abnormal Update
Rate
9
Root Cause Not
Known
11
Transmission
Requested Gear
Received Network
Data In Error
525
19
Cruise Control Panel
Switches
Condition Exists
527
31
Brake Switch
Data Erratic,
Intermittent Or
Incorrect
597
2
Abnormal Update
Rate
9
Abnormal Rate Of
Change
10
Received Network
Data In Error
19
System Voltage
Data Valid But Above
Normal Operating
Range - Least Severe
Level
627
15
Data Valid But Below
Normal Operating
Range - Least Severe
Level
17
ECU Memory
Bad Intelligent Device
Or Component
628
12
Out Of Calibration 13
Calibration Out Of Calibration 630 13
165
TROUBLESHOOTING
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