Product Manual

Owner’s Manual for Dry-Prime Diesel Trash Pumps 61
Troubleshooting
Control System Troubleshooting
Diagnostic Trouble Codes (DTS)
CANbus Diagnostic Trouble Codes are a pair of numbers:
the Suspect Parameter Number (SPN) and Failure Mode
Identifier (FMI). The SPN indicates the faulting subsystem
and the FMI identifies the type of failure.
SPN Codes
Standard SPN codes are defined by SAE J1939-71. Not
all standard codes are provided by ECUs. Manufacturers
may add additional SPN codes beyond the codes identified
in J1939-71. Contact a Deutz dealer or Generac Technical
Service for more information.
Symptom Possible Cause Solution
Control system does not perform self
test
Faulty connection to battery Correct battery connections
Faulty control system Repair or replace control system
Control system shuts down Engine stop LED illuminated
Correct ECU stop condition, use
ECU diagnostics
Display does not display data
Display lost power
Turn on key, verify display plugged
into harness
Engine source address incorrect
Change engine address in
Configuration
Display address incorrect
Change display address to 40
(default)
Display configuration problem
Reset display using Restore
Defaults
CANbus failure Check CANbus
ECU not sending data Repair or replace ECU
Engine will not crank
Fuel level/pressure low (SPN
524057)
Check fuel level
Check if fuel supply line is loose
Prime fuel system: Turn key to Start
position. Let pump run for 10-15
seconds. (May need to repeat.)
Table 8 - Typical SPN Codes
SPN Description
51 Throttle Position
91 Accelerator Pedal Position
94 Fuel Delivery Pressure
98 Engine Oil Level
100 Engine Oil Pressure
110 Engine Coolant Temperature
111 Coolant Level