JLG 460SJ Service Manual - Manual (Page 196)

SECTION 3 - CHASSIS & TURNTABLE
3-144 – JLG Lift – 3120895
3.31 DGC DIAGNOSTIC SUPPORT AND
TROUBLE CODE DEFINITIONS
This section defines the diagnostics and recommended
troubleshooting procedures associated with an EControls
Diesel Governor Control (DGC) engine control module
(ECM) for use on industrial engines.
Section Layout
This section is organized in the following manner:
DTC XXXX- Diagnostic Condition
Block Diagram of Circuit
External Hardware Input/Output- This identifies the hardware that either sends an input
to the ECM or is driven by and ECM output.
Check Condition- This defines what condition to troubleshoot the fault condition.
Fault Condition(s)- This identifies the condition(s) that set the fault.
Corrective Action(s)- This identifies the RECOMMENED corrective action(s) that the
ECM is generally programmed to perform. In some instances, the calibration
engineer(s) may choose to perform a different action.
Emissions or Non-emissions related fault
Text to identify the circuit of interest and its use for control.
Text to describe t he conditions that cause the fault to set.
DTC XXXX- Diagnostic Condition
Note: Helpful tips used to aid troubleshooting
Yes
No
Troubleshooting flow
chart