Lull 944E-42 Service Manual - Manual (Page 195)

9-37 944E-42
Electrical System
9.13 TROUBLESHOOTING
9.13.1 Engine Fault Codes Retrieval
1. Park the machine on a firm, level surface, level the
machine, fully retract the boom, lower the boom,
place the transmission control lever in (N) NEUTRAL
and engage the park brake.
2. Turn the ignition switch to “ON”.
3. Cycle the throttle pedal 3 times. The fault lamp will
begin to flash a code number. The light will flash the
first digit then pause for a short time and then flash
the second digit.
4. Once the code is retrieved, turn the ignition OFF.
For more information, contact your local authorized
Cummins service distributor.
9.13.2 Engine Fault Codes Chart
Fault
Codes
SPN
Codes
FMI
Codes
Lamp
Color
SPN Description Cummins Description
111 629 12 Red Controller #1 Engine Control Module Critical internal failure -
Bad intelligent Device or Component
115 612 2 Red System Diagnostic
Code #2
Engine Speed/Position Sensor Circuit lost both
of two signals from the magnetic pickup sensor
- Data Erratic, Intermittent, or incorrect
122 102 3 Amber Boost Pressure Intake Manifold Pressure Sensor Circuit -
Voltage Above Normal, or Shorted to High
Source
123 102 4 Amber Boost Pressure Intake Manifold Pressure Sensor Circuit -
Voltage Below Normal, or Shorted to Low
Source
124 102 16 Amber Boost Pressure Intake Manifold 1 Pressure - Data Valid but
Above Normal Operational Range - Moderately
Severe Level
131 91 3 Red Accelerator Pedal
Position
Accelerator Pedal or Lever Position Sensor
Circuit - Voltage Above Normal, or Shorted to
High Source
132 91 4 Red Accelerator Pedal
Position
Accelerator Pedal or Lever Position Sensor
Circuit - Voltage Below Normal, or Shorted to
Low Source
133 974 3 Red Remote Accelerator Remote Accelerator Pedal or Lever Position
Sensor Circuit - Voltage Above Normal, or
Shorted to High Source