User guide

JT25 Operator’s Manual Systems and Equipment - 147
Diagnostic Codes
CMW
723 7 amber engine speed/position
camshaft and crankshaft
misalignment
mechanical system not responding or out of
adjustment
723 2 amber engine camshaft speed/
position sensor
data erratic, intermittent, or incorrect
723 2 none engine camshaft speed/
position sensor
data erratic, intermittent, or incorrect
729 3 amber engine intake air heater 1 voltage above normal or shorted to high
source
729 4 amber engine intake air heater 1 voltage below normal or shorted to low
source
974 19 red SAE J1939 multiplexing
remote accelerator pedal or
lever position sensor system
received network data in error
1172 3 amber turbocharger 1 compressor
intake temperature
voltage above normal or shorted to high
source
1172 4 amber turbocharger 1 compressor
intake temperature
voltage below normal or shorted to low
source
1209 3 amber exhaust gas pressure sensor voltage above normal or shorted to high
source
1209 4 amber exhaust gas pressure sensor voltage below normal or shorted to low
source
1209 2 amber exhaust gas pressure sensor data erratic, intermittent or incorrect
1347 4 amber engine fuel pump
pressurizing assembly 1
voltage below normal or shorted to low
source
1347 3 amber engine fuel pump
pressurizing assembly 1
voltage above normal or shorted to high
source
1623 9 amber tachograph output shaft
speed
abnormal update rate
1623 19 amber tachograph output shaft
speed
received network data in error
1675 31 none [C2ST] engine starter mode
overcrank protection
condition exists
2623 3 amber accelerator pedal or lever
position sensor 2
voltage above normal or shorted to high
source
2623 4 amber accelerator pedal or lever
position sensor 2
voltage below normal or shorted to low
source
SPN FMI Warning
Color
Circuit Error Description